diff --git a/maintainers/team-list.nix b/maintainers/team-list.nix
index 6251203607a3..fe798e939a52 100644
--- a/maintainers/team-list.nix
+++ b/maintainers/team-list.nix
@@ -575,6 +575,7 @@ with lib.maintainers;
     members = [
       aanderse
       edwtjo
+      hrdinka
       thiagokokada
     ];
     scope = "Maintain Libretro, RetroArch and related packages.";
diff --git a/pkgs/applications/emulators/retroarch/README.md b/pkgs/applications/emulators/retroarch/README.md
index 74b600e069bd..1a1fec0ed1d1 100644
--- a/pkgs/applications/emulators/retroarch/README.md
+++ b/pkgs/applications/emulators/retroarch/README.md
@@ -1,46 +1,16 @@
-# RetroArch
+# Libretro
 
-This directory includes [RetroArch](https://www.retroarch.com/), [libretro
-cores](https://docs.libretro.com/guides/core-list/) and related packages.
+[libretro cores](https://docs.libretro.com/guides/core-list/) and related
+packages.
 
 ## Adding new cores
 
 The basic steps to add a new core are:
 
-1. Add the core repository to [update_cores.py](./update_cores.py) inside the
-   `CORES` map.
-   - The minimum required parameter is `repo`
-   - If the repository owner is not `libretro`, set `owner` parameter
-   - If the core needs submodules, set `fetch_submodules` parameter to `True`
-   - To pin the core to a specific release, set `rev` parameter
-2. Run `./pkgs/applications/emulators/retroarch/update_cores.py <emulator>` to
-   generate [`hashes.json`](./hashes.json) file
-3. Add your new core to [`cores.nix`](./cores.nix) file, using
-   [`mkLibretroCore`](./mkLibretroCore.nix) function
-   - In general, the attribute name should be the same as the repo name, unless
-   there is a good reason not to
-   - Check the core repo and [Libretro
-   documentation](https://docs.libretro.com/) for the core you're trying to add
-   for instructions on how to build
-   - Also check the examples inside [`cores.nix`](./cores.nix)
-   - If your core is recently released, there is a good chance that you may
-   need to update [`libretro-core-info`](./libretro-core-info.nix) for things
-   to work inside RetroArch
-4. Try to build your core with `nix-build -A libretro.<core>`
-
-## Updating cores
-
-Just run:
-
-```console
-# From the root of your nixpkgs directory
-./pkgs/applications/emulators/retroarch/update_cores.nix
-```
-
-Keep in mind that because of the huge amount of cores that we package here, it
-is recommended to set `GITHUB_TOKEN` to your GitHub's [Personal Access
-Token](https://docs.github.com/en/authentication/keeping-your-account-and-data-secure/managing-your-personal-access-tokens)
-(PAT), otherwise the update will probably fail due to GitHub's API rate limit.
+1. Add a new core using `mkLibretroCore` function (use one of the existing
+   files as an example)
+2. Add your new core to [`default.nix`](./default.nix) file
+3. Try to build your core with `nix-build -A libretro.<core>`
 
 ## Using RetroArch with cores
 
diff --git a/pkgs/applications/emulators/retroarch/cores.nix b/pkgs/applications/emulators/retroarch/cores.nix
index f30d55ee4395..61097042e33f 100644
--- a/pkgs/applications/emulators/retroarch/cores.nix
+++ b/pkgs/applications/emulators/retroarch/cores.nix
@@ -1,1171 +1,196 @@
-{ lib
-, stdenv
-, gcc12Stdenv
-, alsa-lib
-, boost
-, bzip2
-, cmake
-, curl
-, fetchFromGitHub
-, fetchpatch
-, ffmpeg_6
-, fluidsynth
-, fmt
-, freetype
-, gettext
-, harfbuzz
-, hexdump
-, hidapi
-, icu
-, libaio
-, libevdev
-, libGL
-, libGLU
-, libjpeg
-, liblcf
-, libpcap
-, libpng
-, libsndfile
-, libvorbis
-, libxml2
-, libxmp
-, libzip
-, makeWrapper
-, mpg123
-, nasm
-, openssl
-, opusfile
-, pcre
-, pixman
-, pkg-config
-, portaudio
-, python3
-, retroarch
-, sfml
-, snappy
-, speexdsp
-, udev
-, which
-, xorg
-, xxd
-, xz
-, zlib
+{
+  lib,
+  newScope,
+  fetchFromGitHub,
 }:
 
-let
-  hashesFile = lib.importJSON ./hashes.json;
-
-  getCore = repo: (lib.getAttr repo hashesFile);
-
-  getCoreSrc = repo:
-    let
-      inherit (getCore repo) src fetcher;
-      fetcherFn = {
-        inherit fetchFromGitHub;
-      }.${fetcher} or (throw "Unknown fetcher: ${fetcher}");
-    in
-    fetcherFn src;
-
-  getCoreVersion = repo: (getCore repo).version;
-
-  mkLibretroCore =
-    # Sometimes core name != repo name, so you may need to set them differently
-    # when necessary:
-    # - core: used by the resulting core library name, e.g.:
-    #   `${core}_libretro.so`. Needs to match their respectful core info file
-    #   (see https://github.com/libretro/libretro-core-info/)
-    # - repo: the repository name on GitHub
-    # See `update_cores.py` for instruction on how to add a new core.
-    { core
-    , repo ? core
-    , src ? (getCoreSrc repo)
-    , version ? (getCoreVersion repo)
-    , ...
-    }@args:
-    import ./mkLibretroCore.nix ({
-      inherit lib stdenv core repo src version makeWrapper retroarch zlib;
-    } // args);
-in
-{
-  inherit mkLibretroCore;
-
-  atari800 = mkLibretroCore {
-    core = "atari800";
-    makefile = "Makefile";
-    makeFlags = [ "GIT_VERSION=" ];
-    meta = {
-      description = "Port of Atari800 to libretro";
-      license = lib.licenses.gpl2Only;
-    };
-  };
-
-  beetle-gba = mkLibretroCore {
-    core = "mednafen-gba";
-    repo = "beetle-gba";
-    makefile = "Makefile";
-    meta = {
-      description = "Port of Mednafen's GameBoy Advance core to libretro";
-      license = lib.licenses.gpl2Only;
-    };
-  };
-
-  beetle-lynx = mkLibretroCore {
-    core = "mednafen-lynx";
-    repo = "beetle-lynx";
-    makefile = "Makefile";
-    meta = {
-      description = "Port of Mednafen's Lynx core to libretro";
-      license = lib.licenses.gpl2Only;
-    };
-  };
-
-  beetle-ngp = mkLibretroCore {
-    core = "mednafen-ngp";
-    repo = "beetle-ngp";
-    makefile = "Makefile";
-    meta = {
-      description = "Port of Mednafen's NeoGeo Pocket core to libretro";
-      license = lib.licenses.gpl2Only;
-    };
-  };
-
-  beetle-pce = mkLibretroCore {
-    core = "mednafen-pce";
-    repo = "beetle-pce";
-    makefile = "Makefile";
-    meta = {
-      description = "Port of Mednafen's PC Engine core to libretro";
-      license = lib.licenses.gpl2Only;
-    };
-  };
-
-  beetle-pce-fast = mkLibretroCore {
-    core = "mednafen-pce-fast";
-    repo = "beetle-pce-fast";
-    makefile = "Makefile";
-    meta = {
-      description = "Port of Mednafen's PC Engine fast core to libretro";
-      license = lib.licenses.gpl2Only;
-    };
-  };
-
-  beetle-pcfx = mkLibretroCore {
-    core = "mednafen-pcfx";
-    repo = "beetle-pcfx";
-    makefile = "Makefile";
-    meta = {
-      description = "Port of Mednafen's PCFX core to libretro";
-      license = lib.licenses.gpl2Only;
-    };
-  };
-
-  beetle-psx = mkLibretroCore {
-    core = "mednafen-psx";
-    repo = "beetle-psx";
-    makefile = "Makefile";
-    makeFlags = [ "HAVE_HW=0" "HAVE_LIGHTREC=1" ];
-    meta = {
-      description = "Port of Mednafen's PSX Engine core to libretro";
-      license = lib.licenses.gpl2Only;
-    };
-  };
-
-  beetle-psx-hw = mkLibretroCore {
-    core = "mednafen-psx-hw";
-    repo = "beetle-psx";
-    extraBuildInputs = [ libGL libGLU ];
-    makefile = "Makefile";
-    makeFlags = [ "HAVE_VULKAN=1" "HAVE_OPENGL=1" "HAVE_HW=1" "HAVE_LIGHTREC=1" ];
-    meta = {
-      description = "Port of Mednafen's PSX Engine (with HW accel) core to libretro";
-      license = lib.licenses.gpl2Only;
-    };
-  };
-
-  beetle-saturn = mkLibretroCore {
-    core = "mednafen-saturn";
-    repo = "beetle-saturn";
-    makefile = "Makefile";
-    meta = {
-      description = "Port of Mednafen's Saturn core to libretro";
-      license = lib.licenses.gpl2Only;
-      platforms = [ "aarch64-linux" "x86_64-linux" ];
-    };
-  };
-
-  beetle-supafaust = mkLibretroCore {
-    core = "mednafen-supafaust";
-    repo = "beetle-supafaust";
-    makefile = "Makefile";
-    meta = {
-      description = "Port of Mednafen's experimental snes_faust core to libretro";
-      license = lib.licenses.gpl2Plus;
-    };
-  };
-
-  beetle-supergrafx = mkLibretroCore {
-    core = "mednafen-supergrafx";
-    repo = "beetle-supergrafx";
-    makefile = "Makefile";
-    meta = {
-      description = "Port of Mednafen's SuperGrafx core to libretro";
-      license = lib.licenses.gpl2Only;
-    };
-  };
-
-  beetle-vb = mkLibretroCore {
-    core = "mednafen-vb";
-    repo = "beetle-vb";
-    makefile = "Makefile";
-    meta = {
-      description = "Port of Mednafen's VirtualBoy core to libretro";
-      license = lib.licenses.gpl2Only;
-    };
-  };
-
-  beetle-wswan = mkLibretroCore {
-    core = "mednafen-wswan";
-    repo = "beetle-wswan";
-    makefile = "Makefile";
-    meta = {
-      description = "Port of Mednafen's WonderSwan core to libretro";
-      license = lib.licenses.gpl2Only;
-    };
-  };
-
-  blastem = mkLibretroCore {
-    core = "blastem";
-    meta = {
-      description = "Port of BlastEm to libretro";
-      license = lib.licenses.gpl3Only;
-      platforms = lib.platforms.x86;
-    };
-  };
-
-  bluemsx = mkLibretroCore {
-    core = "bluemsx";
-    meta = {
-      description = "Port of BlueMSX to libretro";
-      license = lib.licenses.gpl2Only;
-    };
-  };
-
-  bsnes = mkLibretroCore {
-    core = "bsnes";
-    makefile = "Makefile";
-    meta = {
-      description = "Port of bsnes to libretro";
-      license = lib.licenses.gpl3Only;
-    };
-  };
-
-  bsnes-hd = mkLibretroCore {
-    core = "bsnes-hd-beta";
-    repo = "bsnes-hd";
-    makefile = "GNUmakefile";
-    makeFlags =
-      let
-        # linux = bsd
-        # https://github.com/DerKoun/bsnes-hd/blob/f0b6cf34e9780d53516977ed2de64137a8bcc3c5/bsnes/GNUmakefile#L37
-        platform = if stdenv.hostPlatform.isDarwin then "macos" else "linux";
-      in
-      [
-        "-C"
-        "bsnes"
-        "target=libretro"
-        "platform=${platform}"
-      ];
-    extraBuildInputs = [ xorg.libX11 xorg.libXext ];
-    postBuild = "cd bsnes/out";
-    meta = {
-      description = "Port of bsnes-hd to libretro";
-      license = lib.licenses.gpl3Only;
-    };
-  };
-
-  bsnes-mercury = mkLibretroCore {
-    core = "bsnes-mercury-accuracy";
-    repo = "bsnes-mercury";
-    makefile = "Makefile";
-    makeFlags = [ "PROFILE=accuracy" ];
-    meta = {
-      description = "Fork of bsnes with HLE DSP emulation restored (accuracy profile)";
-      license = lib.licenses.gpl3Only;
-    };
-  };
-
-  bsnes-mercury-balanced = mkLibretroCore {
-    core = "bsnes-mercury-balanced";
-    repo = "bsnes-mercury";
-    makefile = "Makefile";
-    makeFlags = [ "PROFILE=balanced" ];
-    meta = {
-      description = "Fork of bsnes with HLE DSP emulation restored (balanced profile)";
-      license = lib.licenses.gpl3Only;
-    };
-  };
-
-  bsnes-mercury-performance = mkLibretroCore {
-    core = "bsnes-mercury-performance";
-    repo = "bsnes-mercury";
-    makefile = "Makefile";
-    makeFlags = [ "PROFILE=performance" ];
-    meta = {
-      description = "Fork of bsnes with HLE DSP emulation restored (performance profile)";
-      license = lib.licenses.gpl3Only;
-    };
-  };
-
-  citra = mkLibretroCore rec {
-    core = "citra";
-    extraBuildInputs = [ libGLU libGL boost ffmpeg_6 nasm ];
-    makefile = "Makefile";
-    makeFlags = [
-      "HAVE_FFMPEG_STATIC=0"
-      # https://github.com/libretro/citra/blob/1a66174355b5ed948de48ef13c0ed508b6d6169f/Makefile#L87-L90
-      "GIT_REV=${(getCoreSrc core).rev}"
-      "GIT_DESC=${lib.substring 0 8 (getCoreSrc core).rev}"
-      "GIT_BRANCH=master"
-      "BUILD_DATE=01/01/1970_00:00"
-    ];
-    # FIXME: build fail with GCC13:
-    # error: 'mic_device_name' has incomplete type
-    stdenv = gcc12Stdenv;
-    meta = {
-      description = "Port of Citra to libretro";
-      license = lib.licenses.gpl2Plus;
-    };
-  };
-
-  desmume = mkLibretroCore {
-    core = "desmume";
-    preBuild = "cd desmume/src/frontend/libretro";
-    extraBuildInputs = [ libpcap libGLU libGL xorg.libX11 ];
-    makeFlags = lib.optional stdenv.hostPlatform.isAarch32 "platform=armv-unix"
-      ++ lib.optional (!stdenv.hostPlatform.isx86) "DESMUME_JIT=0";
-    meta = {
-      description = "Port of DeSmuME to libretro";
-      license = lib.licenses.gpl2Plus;
-    };
-  };
-
-  desmume2015 = mkLibretroCore {
-    core = "desmume2015";
-    extraBuildInputs = [ libpcap libGLU libGL xorg.libX11 ];
-    makeFlags = lib.optional stdenv.hostPlatform.isAarch32 "platform=armv-unix"
-      ++ lib.optional (!stdenv.hostPlatform.isx86) "DESMUME_JIT=0";
-    preBuild = "cd desmume";
-    meta = {
-      description = "Port of DeSmuME ~2015 to libretro";
-      license = lib.licenses.gpl2Plus;
-    };
-  };
-
-  dolphin = mkLibretroCore {
-    core = "dolphin";
-    extraNativeBuildInputs = [ cmake curl pkg-config ];
-    extraBuildInputs = [
-      libGLU
-      libGL
-      pcre
-      sfml
-      gettext
-      hidapi
-      libevdev
-      udev
-    ] ++ (with xorg; [ libSM libX11 libXi libpthreadstubs libxcb xcbutil libXext libXrandr libXinerama libXxf86vm ]);
-    makefile = "Makefile";
-    cmakeFlags = [
-      "-DLIBRETRO=ON"
-      "-DLIBRETRO_STATIC=1"
-      "-DENABLE_QT=OFF"
-      "-DENABLE_LTO=OFF"
-      "-DUSE_UPNP=OFF"
-      "-DUSE_DISCORD_PRESENCE=OFF"
-    ];
-    dontUseCmakeBuildDir = true;
-    meta = {
-      description = "Port of Dolphin to libretro";
-      license = lib.licenses.gpl2Plus;
-    };
-  };
-
-  dosbox = mkLibretroCore {
-    core = "dosbox";
-    CXXFLAGS = "-std=gnu++11";
-    meta = {
-      description = "Port of DOSBox to libretro";
-      license = lib.licenses.gpl2Only;
-    };
-  };
-
-  dosbox-pure = mkLibretroCore {
-    core = "dosbox-pure";
-    CXXFLAGS = "-std=gnu++11";
-    hardeningDisable = [ "format" ];
-    makefile = "Makefile";
-    meta = {
-      description = "Port of DOSBox to libretro aiming for simplicity and ease of use";
-      license = lib.licenses.gpl2Only;
-    };
-  };
-
-  easyrpg = mkLibretroCore {
-    core = "easyrpg";
-    extraNativeBuildInputs = [ cmake pkg-config ];
-    extraBuildInputs = [ fmt freetype harfbuzz liblcf libpng libsndfile libvorbis libxmp mpg123 opusfile pcre pixman speexdsp ];
-    patches = [
-      # The following patch is shared with easyrpg-player.
-      # Update when new versions of liblcf and easyrpg-player are released.
-      # See pkgs/games/easyrpg-player/default.nix for details.
-      (fetchpatch {
-        name = "0001-Fix-building-with-fmtlib-10.patch";
-        url = "https://github.com/EasyRPG/Player/commit/ab6286f6d01bada649ea52d1f0881dde7db7e0cf.patch";
-        hash = "sha256-GdSdVFEG1OJCdf2ZIzTP+hSrz+ddhTMBvOPjvYQHy54=";
-      })
-    ];
-    cmakeFlags = [
-      "-DBUILD_SHARED_LIBS=ON"
-      "-DPLAYER_TARGET_PLATFORM=libretro"
-      "-DCMAKE_INSTALL_DATADIR=${placeholder "out"}/share"
-    ];
-    makefile = "Makefile";
-    meta = {
-      description = "EasyRPG Player libretro port";
-      license = lib.licenses.gpl3Only;
-    };
-  };
-
-  eightyone = mkLibretroCore {
-    core = "81";
-    repo = "eightyone";
-    meta = {
-      description = "Port of EightyOne to libretro";
-      license = lib.licenses.gpl3Only;
-    };
-  };
-
-  fbalpha2012 = mkLibretroCore {
-    core = "fbalpha2012";
-    makefile = "makefile.libretro";
-    preBuild = "cd svn-current/trunk";
-    meta = {
-      description = "Port of Final Burn Alpha ~2012 to libretro";
-      # Non-commercial clause
-      license = lib.licenses.unfreeRedistributable;
-    };
-  };
-
-  fbneo = mkLibretroCore {
-    core = "fbneo";
-    makefile = "Makefile";
-    preBuild = "cd src/burner/libretro";
-    meta = {
-      description = "Port of FBNeo to libretro";
-      # Non-commercial clause
-      license = lib.licenses.unfreeRedistributable;
-    };
-  };
-
-  fceumm = mkLibretroCore {
-    core = "fceumm";
-    meta = {
-      description = "FCEUmm libretro port";
-      license = lib.licenses.gpl2Only;
-    };
-  };
-
-  flycast = mkLibretroCore {
-    core = "flycast";
-    extraNativeBuildInputs = [ cmake ];
-    extraBuildInputs = [ libGL libGLU ];
-    cmakeFlags = [ "-DLIBRETRO=ON" ];
-    makefile = "Makefile";
-    meta = {
-      description = "Flycast libretro port";
-      license = lib.licenses.gpl2Only;
-      platforms = [ "aarch64-linux" "x86_64-linux" ];
-    };
-  };
-
-  fmsx = mkLibretroCore {
-    core = "fmsx";
-    makefile = "Makefile";
-    meta = {
-      description = "FMSX libretro port";
-      # Non-commercial clause
-      license = lib.licenses.unfreeRedistributable;
-    };
-  };
-
-  freeintv = mkLibretroCore {
-    core = "freeintv";
-    makefile = "Makefile";
-    meta = {
-      description = "FreeIntv libretro port";
-      license = lib.licenses.gpl3Only;
-    };
-  };
-
-  fuse = mkLibretroCore {
-    core = "fuse";
-    meta = {
-      description = "Port of the Fuse Unix Spectrum Emulator to libretro";
-      license = lib.licenses.gpl3Only;
-    };
-  };
-
-  gambatte = mkLibretroCore {
-    core = "gambatte";
-    meta = {
-      description = "Gambatte libretro port";
-      license = lib.licenses.gpl2Only;
-    };
-  };
-
-  genesis-plus-gx = mkLibretroCore {
-    core = "genesis-plus-gx";
-    meta = {
-      description = "Enhanced Genesis Plus libretro port";
-      # Non-commercial clause
-      license = lib.licenses.unfreeRedistributable;
-    };
-  };
-
-  gpsp = mkLibretroCore {
-    core = "gpsp";
-    makefile = "Makefile";
-    meta = {
-      description = "Port of gpSP to libretro";
-      license = lib.licenses.gpl2Only;
-    };
-  };
-
-  gw = mkLibretroCore {
-    core = "gw";
-    makefile = "Makefile";
-    meta = {
-      description = "Port of Game and Watch to libretro";
-      license = lib.licenses.zlib;
-    };
-  };
-
-  handy = mkLibretroCore {
-    core = "handy";
-    makefile = "Makefile";
-    meta = {
-      description = "Port of Handy to libretro";
-      license = lib.licenses.zlib;
-    };
-  };
-
-  hatari = mkLibretroCore {
-    core = "hatari";
-    extraNativeBuildInputs = [ which ];
-    dontConfigure = true;
-    # zlib is already included in mkLibretroCore as buildInputs
-    makeFlags = [ "EXTERNAL_ZLIB=1" ];
-    meta = {
-      description = "Port of Hatari to libretro";
-      license = lib.licenses.gpl2Only;
-    };
-  };
-
-  mame = mkLibretroCore {
-    core = "mame";
-    extraNativeBuildInputs = [ python3 ];
-    extraBuildInputs = [ alsa-lib libGLU libGL ];
-    # Setting this is breaking compilation of src/3rdparty/genie for some reason
-    makeFlags = [ "ARCH=" ];
-    meta = {
-      description = "Port of MAME to libretro";
-      license = with lib.licenses; [ bsd3 gpl2Plus ];
-    };
-  };
-
-  mame2000 = mkLibretroCore {
-    core = "mame2000";
-    makefile = "Makefile";
-    makeFlags = lib.optional (!stdenv.hostPlatform.isx86) "IS_X86=0";
-    meta = {
-      description = "Port of MAME ~2000 to libretro, compatible with MAME 0.37b5 sets";
-      # MAME license, non-commercial clause
-      license = lib.licenses.unfreeRedistributable;
-    };
-  };
-
-  mame2003 = mkLibretroCore {
-    core = "mame2003";
-    makefile = "Makefile";
-    meta = {
-      description = "Port of MAME ~2003 to libretro, compatible with MAME 0.78 sets";
-      # MAME license, non-commercial clause
-      license = lib.licenses.unfreeRedistributable;
-    };
-  };
-
-  mame2003-plus = mkLibretroCore {
-    core = "mame2003-plus";
-    makefile = "Makefile";
-    meta = {
-      description = "Port of MAME ~2003+ to libretro, compatible with MAME 0.78 sets";
-      # MAME license, non-commercial clause
-      license = lib.licenses.unfreeRedistributable;
-    };
-  };
-
-  mame2010 = mkLibretroCore {
-    core = "mame2010";
-    makefile = "Makefile";
-    makeFlags = lib.optionals stdenv.hostPlatform.isAarch64 [ "PTR64=1" "ARM_ENABLED=1" "X86_SH2DRC=0" "FORCE_DRC_C_BACKEND=1" ];
-    meta = {
-      description = "Port of MAME ~2010 to libretro, compatible with MAME 0.139 sets";
-      # MAME license, non-commercial clause
-      license = lib.licenses.unfreeRedistributable;
-    };
-  };
-
-  mame2015 = mkLibretroCore {
-    core = "mame2015";
-    patches = [ ./patches/mame2015-python311.patch ];
-    makeFlags = [ "PYTHON=python3" ];
-    extraNativeBuildInputs = [ python3 ];
-    extraBuildInputs = [ alsa-lib ];
-    makefile = "Makefile";
-    # Build failures when this is set to a bigger number
-    NIX_BUILD_CORES = 8;
-    meta = {
-      description = "Port of MAME ~2015 to libretro, compatible with MAME 0.160 sets";
-      # MAME license, non-commercial clause
-      license = lib.licenses.unfreeRedistributable;
-    };
-  };
-
-  mame2016 = mkLibretroCore {
-    core = "mame2016";
-    patches = [ ./patches/mame2016-python311.patch ];
-    extraNativeBuildInputs = [ python3 ];
-    extraBuildInputs = [ alsa-lib ];
-    makeFlags = [ "PYTHON_EXECUTABLE=python3" ];
-    # Build failures when this is set to a bigger number
-    NIX_BUILD_CORES = 8;
-    # Fix build errors in GCC13
-    NIX_CFLAGS_COMPILE = "-Wno-error -fpermissive";
-    meta = {
-      description = "Port of MAME ~2016 to libretro, compatible with MAME 0.174 sets";
-      license = with lib.licenses; [ bsd3 gpl2Plus ];
-    };
-  };
-
-  melonds = mkLibretroCore {
-    core = "melonds";
-    extraBuildInputs = [ libGL libGLU ];
-    makefile = "Makefile";
-    meta = {
-      description = "Port of MelonDS to libretro";
-      license = lib.licenses.gpl3Only;
-    };
-  };
-
-  mesen = mkLibretroCore {
-    core = "mesen";
-    makefile = "Makefile";
-    preBuild = "cd Libretro";
-    meta = {
-      description = "Port of Mesen to libretro";
-      license = lib.licenses.gpl3Only;
-    };
-  };
-
-  mesen-s = mkLibretroCore {
-    core = "mesen-s";
-    makefile = "Makefile";
-    preBuild = "cd Libretro";
-    normalizeCore = false;
-    meta = {
-      description = "Port of Mesen-S to libretro";
-      license = lib.licenses.gpl3Only;
-    };
-  };
-
-  meteor = mkLibretroCore {
-    core = "meteor";
-    makefile = "Makefile";
-    preBuild = "cd libretro";
-    meta = {
-      description = "Port of Meteor to libretro";
-      license = lib.licenses.gpl3Only;
-    };
-  };
-
-  mgba = mkLibretroCore {
-    core = "mgba";
-    meta = {
-      description = "Port of mGBA to libretro";
-      license = lib.licenses.mpl20;
-    };
-  };
-
-  mrboom = mkLibretroCore {
-    core = "mrboom";
-    makefile = "Makefile";
-    meta = {
-      description = "Port of Mr.Boom to libretro";
-      license = lib.licenses.mit;
-    };
-  };
-
-  mupen64plus = mkLibretroCore {
-    core = "mupen64plus-next";
-    repo = "mupen64plus";
-    extraBuildInputs = [ libGLU libGL libpng nasm xorg.libX11 ];
-    makefile = "Makefile";
-    makeFlags = [
-      "HAVE_PARALLEL_RDP=1"
-      "HAVE_PARALLEL_RSP=1"
-      "HAVE_THR_AL=1"
-      "LLE=1"
-      "WITH_DYNAREC=${stdenv.hostPlatform.parsed.cpu.name}"
-    ];
-    meta = {
-      description = "Libretro port of Mupen64 Plus, GL only";
-      license = lib.licenses.gpl3Only;
-    };
-  };
-
-  neocd = mkLibretroCore {
-    core = "neocd";
-    makefile = "Makefile";
-    meta = {
-      description = "NeoCD libretro port";
-      license = lib.licenses.lgpl3Only;
-    };
-  };
-
-  nestopia = mkLibretroCore {
-    core = "nestopia";
-    makefile = "Makefile";
-    preBuild = "cd libretro";
-    meta = {
-      description = "Nestopia libretro port";
-      license = lib.licenses.gpl2Only;
-    };
-  };
-
-  nxengine = mkLibretroCore {
-    core = "nxengine";
-    makefile = "Makefile";
-    meta = {
-      description = "NXEngine libretro port";
-      license = lib.licenses.gpl3Only;
-    };
-  };
-
-  np2kai = mkLibretroCore rec {
-    core = "np2kai";
-    makeFlags = [
-      # See https://github.com/AZO234/NP2kai/tags
-      "NP2KAI_VERSION=rev.22"
-      "NP2KAI_HASH=${(getCoreSrc core).rev}"
-    ];
-    preBuild = "cd sdl";
-    meta = {
-      description = "Neko Project II kai libretro port";
-      license = lib.licenses.mit;
-    };
-  };
-
-  o2em = mkLibretroCore {
-    core = "o2em";
-    makefile = "Makefile";
-    meta = {
-      description = "Port of O2EM to libretro";
-      license = lib.licenses.artistic1;
-    };
-  };
-
-  opera = mkLibretroCore {
-    core = "opera";
-    makefile = "Makefile";
-    makeFlags = [ "CC_PREFIX=${stdenv.cc.targetPrefix}" ];
-    meta = {
-      description = "Opera is a port of 4DO/libfreedo to libretro";
-      # Non-commercial clause
-      license = lib.licenses.unfreeRedistributable;
-    };
-  };
-
-  parallel-n64 = mkLibretroCore {
-    core = "parallel-n64";
-    extraBuildInputs = [ libGLU libGL libpng ];
-    makefile = "Makefile";
-    makeFlags = [
-      "HAVE_PARALLEL=1"
-      "HAVE_PARALLEL_RSP=1"
-      "ARCH=${stdenv.hostPlatform.parsed.cpu.name}"
-    ];
-    postPatch = lib.optionalString stdenv.hostPlatform.isAarch64 ''
-      sed -i -e '1 i\CPUFLAGS += -DARM_FIX -DNO_ASM -DARM_ASM -DDONT_WANT_ARM_OPTIMIZATIONS -DARM64' Makefile \
-      && sed -i -e 's,CPUFLAGS  :=,,g' Makefile
-    '';
-    meta = {
-      description = "Parallel Mupen64plus rewrite for libretro";
-      license = lib.licenses.gpl3Only;
-    };
-  };
-
-  pcsx2 = mkLibretroCore {
-    core = "pcsx2";
-    extraNativeBuildInputs = [
-      cmake
-      gettext
-      pkg-config
-    ];
-    extraBuildInputs = [
-      libaio
-      libGL
-      libGLU
-      libpcap
-      libpng
-      libxml2
-      xz
-      xxd
-    ];
-    makefile = "Makefile";
-    cmakeFlags = [ "-DLIBRETRO=ON" ];
-    # remove ccache
-    postPatch = ''
-      substituteInPlace CMakeLists.txt --replace "ccache" ""
-    '';
-    postBuild = "cd pcsx2";
-    # causes redefinition of _FORTIFY_SOURCE
-    hardeningDisable = [ "fortify3" ];
-    # FIXME: multiple build errors with GCC13.
-    # Unlikely to be fixed until we switch to libretro/pcsx2 that is a more
-    # up-to-date port (but still WIP).
-    stdenv = gcc12Stdenv;
-    meta = {
-      description = "Port of PCSX2 to libretro";
-      license = lib.licenses.gpl3Plus;
-      platforms = lib.platforms.x86;
-    };
-  };
-
-  pcsx-rearmed = mkLibretroCore {
-    core = "pcsx_rearmed";
-    dontConfigure = true;
-    meta = {
-      description = "Port of PCSX ReARMed with GNU lightning to libretro";
-      license = lib.licenses.gpl2Only;
-    };
-  };
-
-  picodrive = mkLibretroCore {
-    core = "picodrive";
-    dontConfigure = true;
-    meta = {
-      description = "Fast MegaDrive/MegaCD/32X emulator";
-      # Non-commercial clause
-      license = lib.licenses.unfreeRedistributable;
-    };
-  };
-
-  play = mkLibretroCore {
-    core = "play";
-    extraBuildInputs = [ boost bzip2 curl openssl icu libGL libGLU xorg.libX11 ];
-    extraNativeBuildInputs = [ cmake ];
-    makefile = "Makefile";
-    cmakeFlags = [ "-DBUILD_PLAY=OFF" "-DBUILD_LIBRETRO_CORE=ON" ];
-    postBuild = "cd Source/ui_libretro";
-    # FIXME: workaround the following GCC 13 error:
-    # error: 'printf' was not declared in this scop
-    CXXFLAGS = "-include cstdio";
-    meta = {
-      description = "Port of Play! to libretro";
-      license = lib.licenses.bsd2;
-    };
-  };
-
-  ppsspp = mkLibretroCore {
-    core = "ppsspp";
-    extraNativeBuildInputs = [ cmake pkg-config python3 ];
-    extraBuildInputs = [ libGLU libGL libzip snappy xorg.libX11 ];
-    makefile = "Makefile";
-    cmakeFlags = [
-      "-DLIBRETRO=ON"
-      # USE_SYSTEM_FFMPEG=ON causes several glitches during video playback
-      # See: https://github.com/NixOS/nixpkgs/issues/304616
-      "-DUSE_SYSTEM_FFMPEG=OFF"
-      "-DUSE_SYSTEM_SNAPPY=ON"
-      "-DUSE_SYSTEM_LIBZIP=ON"
-      "-DOpenGL_GL_PREFERENCE=GLVND"
-    ];
-    postBuild = "cd lib";
-    meta = {
-      description = "ppsspp libretro port";
-      license = lib.licenses.gpl2Plus;
-    };
-  };
-
-  prboom = mkLibretroCore {
-    core = "prboom";
-    makefile = "Makefile";
-    meta = {
-      description = "Prboom libretro port";
-      license = lib.licenses.gpl2Only;
-    };
-  };
-
-  prosystem = mkLibretroCore {
-    core = "prosystem";
-    makefile = "Makefile";
-    meta = {
-      description = "Port of ProSystem to libretro";
-      license = lib.licenses.gpl2Only;
-    };
-  };
-
-  puae = mkLibretroCore {
-    core = "puae";
-    makefile = "Makefile";
-    meta = {
-      description = "Amiga emulator based on WinUAE";
-      license = lib.licenses.gpl2Only;
-    };
-  };
-
-  quicknes = mkLibretroCore {
-    core = "quicknes";
-    makefile = "Makefile";
-    meta = {
-      description = "QuickNES libretro port";
-      license = lib.licenses.lgpl21Plus;
-    };
-  };
-
-  sameboy = mkLibretroCore {
-    core = "sameboy";
-    extraNativeBuildInputs = [ which hexdump ];
-    preBuild = "cd libretro";
-    makefile = "Makefile";
-    meta = {
-      description = "SameBoy libretro port";
-      license = lib.licenses.mit;
-    };
-  };
-
-  same_cdi = mkLibretroCore {
-    core = "same_cdi";
-    extraNativeBuildInputs = [ python3 ];
-    extraBuildInputs = [ alsa-lib libGLU libGL portaudio xorg.libX11 ];
-    # FIXME: build fail with GCC13:
-    # error: 'uint8_t' in namespace 'std' does not name a type; did you mean 'wint_t'?
-    stdenv = gcc12Stdenv;
-    meta = {
-      description = "SAME_CDI is a libretro core to play CD-i games";
-      license = with lib.licenses; [ bsd3 gpl2Plus ];
-    };
-  };
-
-  scummvm = mkLibretroCore {
-    core = "scummvm";
-    extraBuildInputs = [ fluidsynth libjpeg libvorbis libGLU libGL ];
-    makefile = "Makefile";
-    preConfigure = "cd backends/platform/libretro/build";
-    meta = {
-      description = "Libretro port of ScummVM";
-      license = lib.licenses.gpl2Only;
-    };
-  };
-
-  smsplus-gx = mkLibretroCore {
-    core = "smsplus";
-    repo = "smsplus-gx";
-    meta = {
-      description = "SMS Plus GX libretro port";
-      license = lib.licenses.gpl2Plus;
-    };
-  };
-
-  snes9x = mkLibretroCore {
-    core = "snes9x";
-    makefile = "Makefile";
-    preBuild = "cd libretro";
-    meta = {
-      description = "Port of SNES9x git to libretro";
-      # Non-commercial clause
-      license = lib.licenses.unfreeRedistributable;
-    };
-  };
-
-  snes9x2002 = mkLibretroCore {
-    core = "snes9x2002";
-    makefile = "Makefile";
-    meta = {
-      description = "Optimized port/rewrite of SNES9x 1.39 to Libretro";
-      # Non-commercial clause
-      license = lib.licenses.unfreeRedistributable;
-    };
-  };
-
-  snes9x2005 = mkLibretroCore {
-    core = "snes9x2005";
-    makefile = "Makefile";
-    meta = {
-      description = "Optimized port/rewrite of SNES9x 1.43 to Libretro";
-      # Non-commercial clause
-      license = lib.licenses.unfreeRedistributable;
-    };
-  };
-
-  snes9x2005-plus = mkLibretroCore {
-    core = "snes9x2005-plus";
-    repo = "snes9x2005";
-    makefile = "Makefile";
-    makeFlags = [ "USE_BLARGG_APU=1" ];
-    meta = {
-      description = "Optimized port/rewrite of SNES9x 1.43 to Libretro, with Blargg's APU";
-      # Non-commercial clause
-      license = lib.licenses.unfreeRedistributable;
-    };
-  };
-
-  snes9x2010 = mkLibretroCore {
-    core = "snes9x2010";
-    meta = {
-      description = "Optimized port/rewrite of SNES9x 1.52+ to Libretro";
-      # Non-commercial clause
-      license = lib.licenses.unfreeRedistributable;
-    };
-  };
-
-  stella = mkLibretroCore {
-    core = "stella";
-    makefile = "Makefile";
-    preBuild = "cd src/os/libretro";
-    dontConfigure = true;
-    meta = {
-      description = "Port of Stella to libretro";
-      license = lib.licenses.gpl2Only;
-    };
-  };
-
-  stella2014 = mkLibretroCore {
-    core = "stella2014";
-    makefile = "Makefile";
-    meta = {
-      description = "Port of Stella ~2014 to libretro";
-      license = lib.licenses.gpl2Only;
-    };
-  };
-
-  swanstation = mkLibretroCore {
-    core = "swanstation";
-    extraNativeBuildInputs = [ cmake ];
-    makefile = "Makefile";
-    cmakeFlags = [
-      "-DBUILD_LIBRETRO_CORE=ON"
-    ];
-    meta = {
-      description = "Port of SwanStation (a fork of DuckStation) to libretro";
-      license = lib.licenses.gpl3Only;
-    };
-  };
-
-  tgbdual = mkLibretroCore {
-    core = "tgbdual";
-    makefile = "Makefile";
-    meta = {
-      description = "Port of TGBDual to libretro";
-      license = lib.licenses.gpl2Only;
-    };
-  };
-
-  thepowdertoy = mkLibretroCore {
-    core = "thepowdertoy";
-    extraNativeBuildInputs = [ cmake ];
-    makefile = "Makefile";
-    postBuild = "cd src";
-    meta = {
-      description = "Port of The Powder Toy to libretro";
-      license = lib.licenses.gpl3Only;
-    };
-  };
-
-  tic80 = mkLibretroCore {
-    core = "tic80";
-    extraNativeBuildInputs = [ cmake pkg-config ];
-    makefile = "Makefile";
-    cmakeFlags = [
-      "-DBUILD_LIBRETRO=ON"
-      "-DBUILD_DEMO_CARTS=OFF"
-      "-DBUILD_PRO=OFF"
-      "-DBUILD_PLAYER=OFF"
-      "-DBUILD_SDL=OFF"
-      "-DBUILD_SOKOL=OFF"
-    ];
-    preConfigure = "cd core";
-    postBuild = "cd lib";
-    meta = {
-      description = "Port of TIC-80 to libretro";
-      license = lib.licenses.mit;
-    };
-  };
-
-  twenty-fortyeight = mkLibretroCore {
-    core = "2048";
-    meta = {
-      description = "Port of 2048 puzzle game to the libretro API";
-      license = lib.licenses.unlicense;
-    };
-  };
-
-  vba-m = mkLibretroCore {
-    core = "vbam";
-    repo = "vba-m";
-    makefile = "Makefile";
-    preBuild = "cd src/libretro";
-    meta = {
-      description = "vanilla VBA-M libretro port";
-      license = lib.licenses.gpl2Only;
-    };
-  };
-
-  vba-next = mkLibretroCore {
-    core = "vba-next";
-    meta = {
-      description = "VBA-M libretro port with modifications for speed";
-      license = lib.licenses.gpl2Only;
-    };
-  };
-
-  vecx = mkLibretroCore {
-    core = "vecx";
-    extraBuildInputs = [ libGL libGLU ];
-    meta = {
-      description = "Port of Vecx to libretro";
-      license = lib.licenses.gpl3Only;
-    };
-  };
-
-  virtualjaguar = mkLibretroCore {
-    core = "virtualjaguar";
-    makefile = "Makefile";
-    meta = {
-      description = "Port of VirtualJaguar to libretro";
-      license = lib.licenses.gpl3Only;
-    };
-  };
-
-  yabause = mkLibretroCore {
-    core = "yabause";
-    makefile = "Makefile";
-    # Disable SSE for non-x86. DYNAREC doesn't build on aarch64.
-    makeFlags = lib.optional (!stdenv.hostPlatform.isx86) "HAVE_SSE=0";
-    preBuild = "cd yabause/src/libretro";
-    meta = {
-      description = "Port of Yabause to libretro";
-      license = lib.licenses.gpl2Only;
-    };
-  };
-}
+lib.makeScope newScope (self: {
+  mkLibretroCore = self.callPackage ./mkLibretroCore.nix;
+
+  atari800 = self.callPackage ./cores/atari800.nix { };
+
+  beetle-gba = self.callPackage ./cores/beetle-gba.nix { };
+
+  beetle-lynx = self.callPackage ./cores/beetle-lynx.nix { };
+
+  beetle-ngp = self.callPackage ./cores/beetle-ngp.nix { };
+
+  beetle-pce = self.callPackage ./cores/beetle-pce.nix { };
+
+  beetle-pce-fast = self.callPackage ./cores/beetle-pce-fast.nix { };
+
+  beetle-pcfx = self.callPackage ./cores/beetle-pcfx.nix { };
+
+  beetle-psx = self.callPackage ./cores/beetle-psx.nix { };
+
+  beetle-psx-hw = self.beetle-psx.override { withHw = true; };
+
+  beetle-saturn = self.callPackage ./cores/beetle-saturn.nix { };
+
+  beetle-supafaust = self.callPackage ./cores/beetle-supafaust.nix { };
+
+  beetle-supergrafx = self.callPackage ./cores/beetle-supergrafx.nix { };
+
+  beetle-vb = self.callPackage ./cores/beetle-vb.nix { };
+
+  beetle-wswan = self.callPackage ./cores/beetle-wswan.nix { };
+
+  blastem = self.callPackage ./cores/blastem.nix { };
+
+  bluemsx = self.callPackage ./cores/bluemsx.nix { };
+
+  bsnes = self.callPackage ./cores/bsnes.nix { };
+
+  bsnes-hd = self.callPackage ./cores/bsnes-hd.nix { };
+
+  bsnes-mercury = self.callPackage ./cores/bsnes-mercury.nix { };
+
+  bsnes-mercury-balanced = self.bsnes-mercury.override { withProfile = "balanced"; };
+
+  bsnes-mercury-performance = self.bsnes-mercury.override { withProfile = "performance"; };
+
+  citra = self.callPackage ./cores/citra.nix { };
+
+  desmume = self.callPackage ./cores/desmume.nix { };
+
+  desmume2015 = self.callPackage ./cores/desmume2015.nix { };
+
+  dolphin = self.callPackage ./cores/dolphin.nix { };
+
+  dosbox = self.callPackage ./cores/dosbox.nix { };
+
+  dosbox-pure = self.callPackage ./cores/dosbox-pure.nix { };
+
+  easyrpg = self.callPackage ./cores/easyrpg.nix { };
+
+  eightyone = self.callPackage ./cores/eightyone.nix { };
+
+  fbalpha2012 = self.callPackage ./cores/fbalpha2012.nix { };
+
+  fbneo = self.callPackage ./cores/fbneo.nix { };
+
+  fceumm = self.callPackage ./cores/fceumm.nix { };
+
+  flycast = self.callPackage ./cores/flycast.nix { };
+
+  fmsx = self.callPackage ./cores/fmsx.nix { };
+
+  freeintv = self.callPackage ./cores/freeintv.nix { };
+
+  fuse = self.callPackage ./cores/fuse.nix { };
+
+  gambatte = self.callPackage ./cores/gambatte.nix { };
+
+  genesis-plus-gx = self.callPackage ./cores/genesis-plus-gx.nix { };
+
+  gpsp = self.callPackage ./cores/gpsp.nix { };
+
+  gw = self.callPackage ./cores/gw.nix { };
+
+  handy = self.callPackage ./cores/handy.nix { };
+
+  hatari = self.callPackage ./cores/hatari.nix { };
+
+  mame = self.callPackage ./cores/mame.nix { };
+
+  mame2000 = self.callPackage ./cores/mame2000.nix { };
+
+  mame2003 = self.callPackage ./cores/mame2003.nix { };
+
+  mame2003-plus = self.callPackage ./cores/mame2003-plus.nix { };
+
+  mame2010 = self.callPackage ./cores/mame2010.nix { };
+
+  mame2015 = self.callPackage ./cores/mame2015.nix { };
+
+  mame2016 = self.callPackage ./cores/mame2016.nix { };
+
+  melonds = self.callPackage ./cores/melonds.nix { };
+
+  mesen = self.callPackage ./cores/mesen.nix { };
+
+  mesen-s = self.callPackage ./cores/mesen-s.nix { };
+
+  meteor = self.callPackage ./cores/meteor.nix { };
+
+  mgba = self.callPackage ./cores/mgba.nix { };
+
+  mrboom = self.callPackage ./cores/mrboom.nix { };
+
+  mupen64plus = self.callPackage ./cores/mupen64plus.nix { };
+
+  neocd = self.callPackage ./cores/neocd.nix { };
+
+  nestopia = self.callPackage ./cores/nestopia.nix { };
+
+  np2kai = self.callPackage ./cores/np2kai.nix { };
+
+  nxengine = self.callPackage ./cores/nxengine.nix { };
+
+  o2em = self.callPackage ./cores/o2em.nix { };
+
+  opera = self.callPackage ./cores/opera.nix { };
+
+  parallel-n64 = self.callPackage ./cores/parallel-n64.nix { };
+
+  pcsx2 = self.callPackage ./cores/pcsx2.nix { };
+
+  pcsx-rearmed = self.callPackage ./cores/pcsx-rearmed.nix { };
+  pcsx_rearmed = lib.lowPrio (self.pcsx-rearmed); # added 2024-11-20
+
+  picodrive = self.callPackage ./cores/picodrive.nix { };
+
+  play = self.callPackage ./cores/play.nix { };
+
+  ppsspp = self.callPackage ./cores/ppsspp.nix { };
+
+  prboom = self.callPackage ./cores/prboom.nix { };
+
+  prosystem = self.callPackage ./cores/prosystem.nix { };
+
+  puae = self.callPackage ./cores/puae.nix { };
+
+  quicknes = self.callPackage ./cores/quicknes.nix { };
+
+  same_cdi = self.callPackage ./cores/same_cdi.nix { }; # the name is not a typo
+
+  sameboy = self.callPackage ./cores/sameboy.nix { };
+
+  scummvm = self.callPackage ./cores/scummvm.nix { };
+
+  smsplus-gx = self.callPackage ./cores/smsplus-gx.nix { };
+
+  snes9x = self.callPackage ./cores/snes9x.nix { };
+
+  snes9x2002 = self.callPackage ./cores/snes9x2002.nix { };
+
+  snes9x2005 = self.callPackage ./cores/snes9x2005.nix { };
+
+  snes9x2005-plus = self.snes9x2005.override { withBlarggAPU = true; };
+
+  snes9x2010 = self.callPackage ./cores/snes9x2010.nix { };
+
+  stella = self.callPackage ./cores/stella.nix { };
+
+  stella2014 = self.callPackage ./cores/stella2014.nix { };
+
+  swanstation = self.callPackage ./cores/swanstation.nix { };
+
+  tgbdual = self.callPackage ./cores/tgbdual.nix { };
+
+  thepowdertoy = self.callPackage ./cores/thepowdertoy.nix { };
+
+  tic80 = self.callPackage ./cores/tic80.nix { };
+
+  twenty-fortyeight = self.callPackage ./cores/twenty-fortyeight.nix { };
+
+  vba-m = self.callPackage ./cores/vba-m.nix { };
+
+  vba-next = self.callPackage ./cores/vba-next.nix { };
+
+  vecx = self.callPackage ./cores/vecx.nix { };
+
+  virtualjaguar = self.callPackage ./cores/virtualjaguar.nix { };
+
+  yabause = self.callPackage ./cores/yabause.nix { };
+})
diff --git a/pkgs/applications/emulators/retroarch/cores/atari800.nix b/pkgs/applications/emulators/retroarch/cores/atari800.nix
new file mode 100644
index 000000000000..d749224cb248
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/atari800.nix
@@ -0,0 +1,25 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore rec {
+  core = "atari800";
+  version = "0-unstable-2024-10-31";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "libretro-atari800";
+    rev = "6a18cb23cc4a7cecabd9b16143d2d7332ae8d44b";
+    hash = "sha256-+cZXHtaXnpU/zCwiDtjkyNMFGDahiHzqV2FoTCRnUWE=";
+  };
+
+  makefile = "Makefile";
+  makeFlags = [ "GIT_VERSION=${builtins.substring 0 7 src.rev}" ];
+
+  meta = {
+    description = "Port of Atari800 to libretro";
+    homepage = "https://github.com/libretro/libretro-atari800";
+    license = lib.licenses.gpl2Only;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/beetle-gba.nix b/pkgs/applications/emulators/retroarch/cores/beetle-gba.nix
new file mode 100644
index 000000000000..ba6f74a5a6a0
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/beetle-gba.nix
@@ -0,0 +1,24 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "mednafen-gba";
+  version = "0-unstable-2024-10-21";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "beetle-gba-libretro";
+    rev = "6cee80685f735ea6c2373db2622a1f1ee9f39d39";
+    hash = "sha256-a3XgExXVCUFw3GLCUkEl6now2L8qVdNOaXvrDMcT1ZE=";
+  };
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "Port of Mednafen's GameBoy Advance core to libretro";
+    homepage = "https://github.com/libretro/beetle-gba-libretro";
+    license = lib.licenses.gpl2Only;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/beetle-lynx.nix b/pkgs/applications/emulators/retroarch/cores/beetle-lynx.nix
new file mode 100644
index 000000000000..dcc3a00d1d2a
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/beetle-lynx.nix
@@ -0,0 +1,24 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "mednafen-lynx";
+  version = "0-unstable-2024-10-21";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "beetle-lynx-libretro";
+    rev = "7fead71b49e0f08be5c4d4224fea73c6174763bf";
+    hash = "sha256-fYBx/bjbhRXoVIGnEg4/oMVm705ivL1os+FfVQLRSyI=";
+  };
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "Port of Mednafen's Lynx core to libretro";
+    homepage = "https://github.com/libretro/beetle-lynx-libretro";
+    license = lib.licenses.gpl2Only;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/beetle-ngp.nix b/pkgs/applications/emulators/retroarch/cores/beetle-ngp.nix
new file mode 100644
index 000000000000..567d7332466b
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/beetle-ngp.nix
@@ -0,0 +1,24 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "mednafen-ngp";
+  version = "0-unstable-2024-10-21";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "beetle-ngp-libretro";
+    rev = "139fe34c8dfc5585d6ee1793a7902bca79d544de";
+    hash = "sha256-ruWnCgMxfpPHTWQ7vgNUczmGRzNKKhoZTNlUcNgm4T8=";
+  };
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "Port of Mednafen's NeoGeo Pocket core to libretro";
+    homepage = "https://github.com/libretro/beetle-ngp-libretro";
+    license = lib.licenses.gpl2Only;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/beetle-pce-fast.nix b/pkgs/applications/emulators/retroarch/cores/beetle-pce-fast.nix
new file mode 100644
index 000000000000..f3c9551a9cc0
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/beetle-pce-fast.nix
@@ -0,0 +1,24 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "mednafen-pce-fast";
+  version = "0-unstable-2024-11-15";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "beetle-pce-fast-libretro";
+    rev = "931586f0512663f625a6e981d3047a6620281ab5";
+    hash = "sha256-9Nne4upiQNSAlTZsyXcLNIwN8MMKUO1ycahowYW1sWg=";
+  };
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "Port of Mednafen's PC Engine fast core to libretro";
+    homepage = "https://github.com/libretro/beetle-pce-fast-libretro";
+    license = lib.licenses.gpl2Only;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/beetle-pce.nix b/pkgs/applications/emulators/retroarch/cores/beetle-pce.nix
new file mode 100644
index 000000000000..346ebc6cb3b6
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/beetle-pce.nix
@@ -0,0 +1,24 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "mednafen-pce";
+  version = "0-unstable-2024-11-15";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "beetle-pce-libretro";
+    rev = "af28fb0385d00e0292c4703b3aa7e72762b564d2";
+    hash = "sha256-W+74RTIidSUdviihLy926OvlSdqMECvOLEEiWMtB50w=";
+  };
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "Port of Mednafen's PC Engine core to libretro";
+    homepage = "https://github.com/libretro/beetle-pce-libretro";
+    license = lib.licenses.gpl2Only;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/beetle-pcfx.nix b/pkgs/applications/emulators/retroarch/cores/beetle-pcfx.nix
new file mode 100644
index 000000000000..047a25cd2afa
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/beetle-pcfx.nix
@@ -0,0 +1,24 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "mednafen-pcfx";
+  version = "0-unstable-2024-10-21";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "beetle-pcfx-libretro";
+    rev = "dd04cef9355286488a1d78ff18c4c848a1575540";
+    hash = "sha256-oFBuriCbJWjgPH9RRAM/XUvkW0gKXnvs7lmBpJpWewo=";
+  };
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "Port of Mednafen's PCFX core to libretro";
+    homepage = "https://github.com/libretro/beetle-pcfx-libretro";
+    license = lib.licenses.gpl2Only;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/beetle-psx.nix b/pkgs/applications/emulators/retroarch/cores/beetle-psx.nix
new file mode 100644
index 000000000000..aebe33c49013
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/beetle-psx.nix
@@ -0,0 +1,38 @@
+{
+  lib,
+  libGL,
+  libGLU,
+  fetchFromGitHub,
+  mkLibretroCore,
+  withHw ? false,
+}:
+mkLibretroCore {
+  core = "mednafen-psx" + lib.optionalString withHw "-hw";
+  version = "0-unstable-2024-11-15";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "beetle-psx-libretro";
+    rev = "1068cb8dbd6f312664ecf5901625cab4a6533204";
+    hash = "sha256-ioAnpz6OkHWPaYE0uTEvnHV+vGzq02bQ4oUP8jW6/YA=";
+  };
+
+  extraBuildInputs = lib.optionals withHw [
+    libGL
+    libGLU
+  ];
+
+  makefile = "Makefile";
+  makeFlags = [
+    "HAVE_HW=${if withHw then "1" else "0"}"
+    "HAVE_LIGHTREC=1"
+  ];
+
+  meta = {
+    description =
+      "Port of Mednafen's PSX Engine core to libretro"
+      + lib.optionalString withHw " (with hardware acceleration support)";
+    homepage = "https://github.com/libretro/beetle-psx-libretro";
+    license = lib.licenses.gpl2Only;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/beetle-saturn.nix b/pkgs/applications/emulators/retroarch/cores/beetle-saturn.nix
new file mode 100644
index 000000000000..e648472b14ff
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/beetle-saturn.nix
@@ -0,0 +1,28 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "mednafen-saturn";
+  version = "0-unstable-2024-10-21";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "beetle-saturn-libretro";
+    rev = "0a78a9a5ab0088ba19f21e028dda9f4b4d7c9e48";
+    hash = "sha256-WNQhtaYBg7JqPdxcD0cLRjr2pSda6Xmx/WWYzyu5u9c=";
+  };
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "Port of Mednafen's Saturn core to libretro";
+    homepage = "https://github.com/libretro/beetle-saturn-libretro";
+    license = lib.licenses.gpl2Only;
+    platforms = [
+      "aarch64-linux"
+      "x86_64-linux"
+    ];
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/beetle-supafaust.nix b/pkgs/applications/emulators/retroarch/cores/beetle-supafaust.nix
new file mode 100644
index 000000000000..3f8d18fec719
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/beetle-supafaust.nix
@@ -0,0 +1,24 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "mednafen-supafaust";
+  version = "0-unstable-2024-10-01";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "supafaust";
+    rev = "e25f66765938d33f9ad5850e8d6cd597e55b7299";
+    hash = "sha256-ZgOXHhEHt54J2B1q6uA8v6uOK53g7idJlgoC4guTGow=";
+  };
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "Port of Mednafen's experimental snes_faust core to libretro";
+    homepage = "https://github.com/libretro/supafaust";
+    license = lib.licenses.gpl2Only;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/beetle-supergrafx.nix b/pkgs/applications/emulators/retroarch/cores/beetle-supergrafx.nix
new file mode 100644
index 000000000000..3f0597c4f6ca
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/beetle-supergrafx.nix
@@ -0,0 +1,24 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "mednafen-supergrafx";
+  version = "0-unstable-2024-11-15";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "beetle-supergrafx-libretro";
+    rev = "a776133c34ae8da5daf7d9ccb43e3e292e2b07b0";
+    hash = "sha256-FemWW4EPQCwhrS7YEytf6fEeimdTTfzaDdyRNDIBQyk=";
+  };
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "Port of Mednafen's SuperGrafx core to libretro";
+    homepage = "https://github.com/libretro/beetle-supergrafx-libretro";
+    license = lib.licenses.gpl2Only;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/beetle-vb.nix b/pkgs/applications/emulators/retroarch/cores/beetle-vb.nix
new file mode 100644
index 000000000000..e6af3a42ae21
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/beetle-vb.nix
@@ -0,0 +1,24 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "mednafen-vb";
+  version = "0-unstable-2024-10-21";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "beetle-vb-libretro";
+    rev = "8f837ebc077afdd6652efb2827fd8308a07113ca";
+    hash = "sha256-eAnBubNhj78G4r8OHVqwFXGOSA9wEYI6ZwNyiwDW8W8=";
+  };
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "Port of Mednafen's VirtualBoy core to libretro";
+    homepage = "https://github.com/libretro/beetle-vb-libretro";
+    license = lib.licenses.gpl2Only;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/beetle-wswan.nix b/pkgs/applications/emulators/retroarch/cores/beetle-wswan.nix
new file mode 100644
index 000000000000..39b2afda52e9
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/beetle-wswan.nix
@@ -0,0 +1,24 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "mednafen-wswan";
+  version = "0-unstable-2024-06-28";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "beetle-wswan-libretro";
+    rev = "440e9228592a3f603d7d09e8bee707b0163f545f";
+    hash = "sha256-+98gCDBYeqUlFGzX83lwTGqSezLnzWRwapZCn4T37uE=";
+  };
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "Port of Mednafen's WonderSwan core to libretro";
+    homepage = "https://github.com/libretro/beetle-wswan-libretro";
+    license = lib.licenses.gpl2Only;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/blastem.nix b/pkgs/applications/emulators/retroarch/cores/blastem.nix
new file mode 100644
index 000000000000..cdcba56c6a98
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/blastem.nix
@@ -0,0 +1,23 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "blastem";
+  version = "0-unstable-2022-07-26";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "blastem";
+    rev = "277e4a62668597d4f59cadda1cbafb844f981d45";
+    hash = "sha256-EHvKElPw8V5Z6LnMaQXBCdM4niLIlF3aBm8dRbeYXHs=";
+  };
+
+  meta = {
+    description = "Port of BlastEm to libretro";
+    homepage = "https://github.com/libretro/blastem";
+    license = lib.licenses.gpl3Only;
+    platforms = lib.platforms.x86;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/bluemsx.nix b/pkgs/applications/emulators/retroarch/cores/bluemsx.nix
new file mode 100644
index 000000000000..1f352cf6356b
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/bluemsx.nix
@@ -0,0 +1,22 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "bluemsx";
+  version = "0-unstable-2024-10-22";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "bluemsx-libretro";
+    rev = "01ce142ccb85c302420cb962d1b6e6a68a6ce076";
+    hash = "sha256-h3Zpv+h6CbM1pdSOXsjN0pFUjXLn5T/R5W55VZXpMVM=";
+  };
+
+  meta = {
+    description = "Port of BlueMSX to libretro";
+    homepage = "https://github.com/libretro/blueMSX-libretro";
+    license = lib.licenses.gpl2Only;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/bsnes-hd.nix b/pkgs/applications/emulators/retroarch/cores/bsnes-hd.nix
new file mode 100644
index 000000000000..5353a8ef49b5
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/bsnes-hd.nix
@@ -0,0 +1,38 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+  xorg,
+}:
+mkLibretroCore {
+  core = "bsnes-hd-beta";
+  version = "0-unstable-2023-04-26";
+
+  src = fetchFromGitHub {
+    owner = "DerKoun";
+    repo = "bsnes-hd";
+    rev = "f46b6d6368ea93943a30b5d4e79e8ed51c2da5e8";
+    hash = "sha256-Y3FhGtcz7BzwUSBy1SGMuylJdZti/JB8qQnabIkG/dI=";
+  };
+
+  extraBuildInputs = [
+    xorg.libX11
+    xorg.libXext
+  ];
+
+  makefile = "GNUmakefile";
+  makeFlags = [
+    "-C"
+    "bsnes"
+    "target=libretro"
+    "platform=linux"
+  ];
+
+  postBuild = "cd bsnes/out";
+
+  meta = {
+    description = "Port of bsnes-hd to libretro";
+    homepage = "https://github.com/DerKoun/bsnes-hd";
+    license = lib.licenses.gpl3Only;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/bsnes-mercury.nix b/pkgs/applications/emulators/retroarch/cores/bsnes-mercury.nix
new file mode 100644
index 000000000000..edb377829e11
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/bsnes-mercury.nix
@@ -0,0 +1,26 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+  withProfile ? "accuracy",
+}:
+mkLibretroCore {
+  core = "bsnes-mercury-${withProfile}";
+  version = "0-unstable-2024-10-21";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "bsnes-mercury";
+    rev = "0f35d044bf2f2b879018a0500e676447e93a1db1";
+    hash = "sha256-skVREKYITZn+gKKSZmwuBCWrG0jb/pifwIgat8VyQ8U=";
+  };
+
+  makefile = "Makefile";
+  makeFlags = [ "PROFILE=${withProfile}" ];
+
+  meta = {
+    description = "Fork of bsnes with HLE DSP emulation restored (${withProfile} profile)";
+    homepage = "https://github.com/libretro/bsnes-mercury";
+    license = lib.licenses.gpl3Only;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/bsnes.nix b/pkgs/applications/emulators/retroarch/cores/bsnes.nix
new file mode 100644
index 000000000000..0e31a09943da
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/bsnes.nix
@@ -0,0 +1,24 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "bsnes";
+  version = "0-unstable-2024-09-06";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "bsnes-libretro";
+    rev = "20c55eb6333a11395ba637df8583066483e58cb2";
+    hash = "sha256-IP00xtxS3wwnQSmYltrX8GEHZX/65xnx2EsmQlE1VZM=";
+  };
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "Port of bsnes to libretro";
+    homepage = "https://github.com/libretro/bsnes-libretro";
+    license = lib.licenses.gpl3Only;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/citra.nix b/pkgs/applications/emulators/retroarch/cores/citra.nix
new file mode 100644
index 000000000000..1739d978d4d0
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/citra.nix
@@ -0,0 +1,52 @@
+{
+  lib,
+  fetchFromGitHub,
+  boost,
+  ffmpeg_6,
+  gcc12Stdenv,
+  libGL,
+  libGLU,
+  mkLibretroCore,
+  nasm,
+}:
+mkLibretroCore rec {
+  core = "citra";
+  version = "0-unstable-2024-04-01";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "citra";
+    # TODO: upstream migrated to cmake, this is the latest rev without it
+    rev = "36b600692905ebd457cbc9321e2f521938eced16";
+    hash = "sha256-ZJcsdFgLBda4xS4Z6I8Pu+6B9TYwak//0CbloDK3Yg0=";
+    fetchSubmodules = true;
+  };
+
+  makefile = "Makefile";
+  makeFlags = [
+    "HAVE_FFMPEG_STATIC=0"
+    # https://github.com/libretro/citra/blob/1a66174355b5ed948de48ef13c0ed508b6d6169f/Makefile#L87-L90
+    "GIT_REV=${src.rev}"
+    "GIT_DESC=${lib.substring 0 7 src.rev}"
+    "GIT_BRANCH=master"
+    "BUILD_DATE=01/01/1970_00:00"
+  ];
+
+  extraBuildInputs = [
+    boost
+    ffmpeg_6
+    libGL
+    libGLU
+    nasm
+  ];
+
+  # FIXME: build fail with GCC13:
+  # error: 'mic_device_name' has incomplete type
+  stdenv = gcc12Stdenv;
+
+  meta = {
+    description = "Port of Citra to libretro";
+    homepage = "https://github.com/libretro/citra";
+    license = lib.licenses.gpl2Plus;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/desmume.nix b/pkgs/applications/emulators/retroarch/cores/desmume.nix
new file mode 100644
index 000000000000..bd03cb5bf341
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/desmume.nix
@@ -0,0 +1,40 @@
+{
+  lib,
+  stdenv,
+  fetchFromGitHub,
+  mkLibretroCore,
+  libpcap,
+  libGLU,
+  libGL,
+  xorg,
+}:
+mkLibretroCore {
+  core = "desmume";
+  version = "0-unstable-2024-10-21";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "desmume";
+    rev = "7f05a8d447b00acd9e0798aee97b4f72eb505ef9";
+    hash = "sha256-BttWMunVbfPOTGx+DV+3QyOwW+55tgXKVIn99DZhbBI=";
+  };
+
+  extraBuildInputs = [
+    libpcap
+    libGLU
+    libGL
+    xorg.libX11
+  ];
+
+  makeFlags =
+    lib.optional stdenv.hostPlatform.isAarch32 "platform=armv-unix"
+    ++ lib.optional (!stdenv.hostPlatform.isx86) "DESMUME_JIT=0";
+
+  preBuild = "cd desmume/src/frontend/libretro";
+
+  meta = {
+    description = "Port of DeSmuME to libretro";
+    homepage = "https://github.com/libretro/desmume";
+    license = lib.licenses.gpl2Plus;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/desmume2015.nix b/pkgs/applications/emulators/retroarch/cores/desmume2015.nix
new file mode 100644
index 000000000000..6b654234aee6
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/desmume2015.nix
@@ -0,0 +1,40 @@
+{
+  lib,
+  stdenv,
+  fetchFromGitHub,
+  mkLibretroCore,
+  libpcap,
+  libGLU,
+  libGL,
+  xorg,
+}:
+mkLibretroCore {
+  core = "desmume2015";
+  version = "0-unstable-2024-10-21";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "desmume2015";
+    rev = "af397ff3d1f208c27f3922cc8f2b8e08884ba893";
+    hash = "sha256-kEb+og4g7rJvCinBZKcb42geZO6W8ynGsTG9yqYgI+U=";
+  };
+
+  extraBuildInputs = [
+    libpcap
+    libGLU
+    libGL
+    xorg.libX11
+  ];
+
+  makeFlags =
+    lib.optional stdenv.hostPlatform.isAarch32 "platform=armv-unix"
+    ++ lib.optional (!stdenv.hostPlatform.isx86) "DESMUME_JIT=0";
+
+  preBuild = "cd desmume";
+
+  meta = {
+    description = "Port of DeSmuME ~2015 to libretro";
+    homepage = "https://github.com/libretro/desmume2015";
+    license = lib.licenses.gpl2Plus;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/dolphin.nix b/pkgs/applications/emulators/retroarch/cores/dolphin.nix
new file mode 100644
index 000000000000..b645617b4696
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/dolphin.nix
@@ -0,0 +1,71 @@
+{
+  lib,
+  fetchFromGitHub,
+  cmake,
+  curl,
+  gettext,
+  hidapi,
+  libGL,
+  libGLU,
+  libevdev,
+  mkLibretroCore,
+  pcre,
+  pkg-config,
+  sfml,
+  udev,
+  xorg,
+}:
+mkLibretroCore {
+  core = "dolphin";
+  version = "0-unstable-2024-04-19";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "dolphin";
+    rev = "89a4df725d4eb24537728f7d655cddb1add25c18";
+    hash = "sha256-f9O3//EuoCSPQC7GWmf0EzAEpjoKof30kIDBCDw0dbs=";
+  };
+
+  extraNativeBuildInputs = [
+    cmake
+    curl
+    pkg-config
+  ];
+  extraBuildInputs = [
+    gettext
+    hidapi
+    libGL
+    libGLU
+    libevdev
+    pcre
+    sfml
+    udev
+    xorg.libSM
+    xorg.libX11
+    xorg.libXext
+    xorg.libXi
+    xorg.libXinerama
+    xorg.libXrandr
+    xorg.libXxf86vm
+    xorg.libpthreadstubs
+    xorg.libxcb
+    xorg.xcbutil
+  ];
+
+  makefile = "Makefile";
+  cmakeFlags = [
+    "-DLIBRETRO=ON"
+    "-DLIBRETRO_STATIC=1"
+    "-DENABLE_QT=OFF"
+    "-DENABLE_LTO=OFF"
+    "-DUSE_UPNP=OFF"
+    "-DUSE_DISCORD_PRESENCE=OFF"
+  ];
+  dontUseCmakeBuildDir = true;
+
+  meta = {
+    description = "Port of Dolphin to libretro";
+    homepage = "https://github.com/libretro/dolphin";
+    license = lib.licenses.gpl2Plus;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/dosbox-pure.nix b/pkgs/applications/emulators/retroarch/cores/dosbox-pure.nix
new file mode 100644
index 000000000000..da24544b5f17
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/dosbox-pure.nix
@@ -0,0 +1,25 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "dosbox-pure";
+  version = "0-unstable-2024-09-28";
+
+  src = fetchFromGitHub {
+    owner = "schellingb";
+    repo = "dosbox-pure";
+    rev = "9b4147fd14332a7354c9b76fa72653bda2d919e9";
+    hash = "sha256-lzRBzBMIQ3X+VAHK8pl/HYELecTkdFlWJI7C1csmZ7I=";
+  };
+
+  hardeningDisable = [ "format" ];
+  makefile = "Makefile";
+
+  meta = {
+    description = "Port of DOSBox to libretro aiming for simplicity and ease of use";
+    homepage = "https://github.com/schellingb/dosbox-pure";
+    license = lib.licenses.gpl2Only;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/dosbox.nix b/pkgs/applications/emulators/retroarch/cores/dosbox.nix
new file mode 100644
index 000000000000..3dfc236eb0c5
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/dosbox.nix
@@ -0,0 +1,24 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "dosbox";
+  version = "0-unstable-2022-07-18";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "dosbox-libretro";
+    rev = "b7b24262c282c0caef2368c87323ff8c381b3102";
+    hash = "sha256-PG2eElenlEpu0U/NIh53p0uLqewnEdaq6Aoak5E1P3I=";
+  };
+
+  env.CXXFLAGS = "-std=gnu++11";
+
+  meta = {
+    description = "Port of DOSBox to libretro";
+    homepage = "https://github.com/libretro/dosbox-libretro";
+    license = lib.licenses.gpl2Only;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/easyrpg.nix b/pkgs/applications/emulators/retroarch/cores/easyrpg.nix
new file mode 100644
index 000000000000..d28a571ba576
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/easyrpg.nix
@@ -0,0 +1,75 @@
+{
+  lib,
+  fetchFromGitHub,
+  cmake,
+  fetchpatch,
+  fmt,
+  freetype,
+  harfbuzz,
+  liblcf,
+  libpng,
+  libsndfile,
+  libvorbis,
+  libxmp,
+  mkLibretroCore,
+  mpg123,
+  opusfile,
+  pcre,
+  pixman,
+  pkg-config,
+  speexdsp,
+}:
+mkLibretroCore {
+  core = "easyrpg";
+  version = "0.8-unstable-2023-04-29";
+
+  src = fetchFromGitHub {
+    owner = "EasyRPG";
+    repo = "Player";
+    rev = "f8e41f43b619413f95847536412b56f85307d378";
+    hash = "sha256-nvWM4czTv/GxY9raomBEn7dmKBeLtSA9nvjMJxc3Q8s=";
+    fetchSubmodules = true;
+  };
+
+  extraNativeBuildInputs = [
+    cmake
+    pkg-config
+  ];
+  extraBuildInputs = [
+    fmt
+    freetype
+    harfbuzz
+    liblcf
+    libpng
+    libsndfile
+    libvorbis
+    libxmp
+    mpg123
+    opusfile
+    pcre
+    pixman
+    speexdsp
+  ];
+  patches = [
+    # The following patch is shared with easyrpg-player.
+    # Update when new versions of liblcf and easyrpg-player are released.
+    # See easyrpg-player expression for details.
+    (fetchpatch {
+      name = "0001-Fix-building-with-fmtlib-10.patch";
+      url = "https://github.com/EasyRPG/Player/commit/ab6286f6d01bada649ea52d1f0881dde7db7e0cf.patch";
+      hash = "sha256-GdSdVFEG1OJCdf2ZIzTP+hSrz+ddhTMBvOPjvYQHy54=";
+    })
+  ];
+  cmakeFlags = [
+    "-DBUILD_SHARED_LIBS=ON"
+    "-DPLAYER_TARGET_PLATFORM=libretro"
+    "-DCMAKE_INSTALL_DATADIR=${placeholder "out"}/share"
+  ];
+  makefile = "Makefile";
+
+  meta = {
+    description = "EasyRPG Player libretro port";
+    homepage = "https://github.com/EasyRPG/Player";
+    license = lib.licenses.gpl3Only;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/eightyone.nix b/pkgs/applications/emulators/retroarch/cores/eightyone.nix
new file mode 100644
index 000000000000..88f0fa5822df
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/eightyone.nix
@@ -0,0 +1,22 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "81";
+  version = "0-unstable-2024-10-21";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "81-libretro";
+    rev = "ffc99f27f092addc9ddd34dd0e3a3d4d1c053cbf";
+    hash = "sha256-3AIXk3LJHZHWIojMeo2BJHWYDHQ17WVbkwjFhXM14ZE=";
+  };
+
+  meta = {
+    description = "Port of EightyOne to libretro";
+    homepage = "https://github.com/libretro/81-libretro";
+    license = lib.licenses.gpl3Only;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/fbalpha2012.nix b/pkgs/applications/emulators/retroarch/cores/fbalpha2012.nix
new file mode 100644
index 000000000000..febf6f7935a8
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/fbalpha2012.nix
@@ -0,0 +1,25 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "fbalpha2012";
+  version = "0-unstable-2024-10-21";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "fbalpha2012";
+    rev = "77167cea72e808384c136c8c163a6b4975ce7a84";
+    hash = "sha256-giEV09dT/e82bmDlRkxpkW04JcsEZc/enIPecqYtg3c=";
+  };
+
+  makefile = "makefile.libretro";
+  preBuild = "cd svn-current/trunk";
+
+  meta = {
+    description = "Port of Final Burn Alpha ~2012 to libretro";
+    homepage = "https://github.com/libretro/fbalpha2012";
+    license = lib.licenses.unfreeRedistributable;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/fbneo.nix b/pkgs/applications/emulators/retroarch/cores/fbneo.nix
new file mode 100644
index 000000000000..238d96778a98
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/fbneo.nix
@@ -0,0 +1,25 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "fbneo";
+  version = "0-unstable-2024-10-03";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "fbneo";
+    rev = "d72f49f4a45dbfc5a855956d1a75ce2d0601c1c5";
+    hash = "sha256-+T+HQo6IfY8+oE/mOg54Vn9NhasGYNCLXksFdSDT/xE=";
+  };
+
+  makefile = "Makefile";
+  preBuild = "cd src/burner/libretro";
+
+  meta = {
+    description = "Port of FBNeo to libretro";
+    homepage = "https://github.com/libretro/fbneo";
+    license = lib.licenses.unfreeRedistributable;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/fceumm.nix b/pkgs/applications/emulators/retroarch/cores/fceumm.nix
new file mode 100644
index 000000000000..93c6956d18b1
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/fceumm.nix
@@ -0,0 +1,22 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "fceumm";
+  version = "0-unstable-2024-09-23";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "libretro-fceumm";
+    rev = "e226068f979cd8fbfc3be9780d16cfb1405095b0";
+    hash = "sha256-2G5EzcDJkEhaN+nXi/wu3+Ejim04ZzOr+LW69cLAEuM=";
+  };
+
+  meta = {
+    description = "FCEUmm libretro port";
+    homepage = "https://github.com/libretro/libretro-fceumm";
+    license = lib.licenses.gpl2Only;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/flycast.nix b/pkgs/applications/emulators/retroarch/cores/flycast.nix
new file mode 100644
index 000000000000..77abcb4eaded
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/flycast.nix
@@ -0,0 +1,38 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+  cmake,
+  libGL,
+  libGLU,
+}:
+mkLibretroCore {
+  core = "flycast";
+  version = "0-unstable-2024-10-05";
+
+  src = fetchFromGitHub {
+    owner = "flyinghead";
+    repo = "flycast";
+    rev = "d689c50e21bf956913ac607933cd4082eaedc06b";
+    hash = "sha256-XIe1JrKVY4ba5WnKrVofWNpJU5pcwUyDd14ZzaGcf+k=";
+    fetchSubmodules = true;
+  };
+
+  extraNativeBuildInputs = [ cmake ];
+  extraBuildInputs = [
+    libGL
+    libGLU
+  ];
+  cmakeFlags = [ "-DLIBRETRO=ON" ];
+  makefile = "Makefile";
+
+  meta = {
+    description = "Flycast libretro port";
+    homepage = "https://github.com/flyinghead/flycast";
+    license = lib.licenses.gpl2Only;
+    platforms = [
+      "aarch64-linux"
+      "x86_64-linux"
+    ];
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/fmsx.nix b/pkgs/applications/emulators/retroarch/cores/fmsx.nix
new file mode 100644
index 000000000000..ca320c9df653
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/fmsx.nix
@@ -0,0 +1,24 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "fmsx";
+  version = "0-unstable-2024-06-28";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "fmsx-libretro";
+    rev = "cf97a3c6da07d5f8e98c90c907ad987ffea432e0";
+    hash = "sha256-mPgmt05XDnB+eIWtOpBfZ37Cz24VBei1lLLaYsJNeAA=";
+  };
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "FMSX libretro port";
+    homepage = "https://github.com/libretro/fmsx-libretro";
+    license = lib.licenses.unfreeRedistributable;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/freeintv.nix b/pkgs/applications/emulators/retroarch/cores/freeintv.nix
new file mode 100644
index 000000000000..e5486b6a1d03
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/freeintv.nix
@@ -0,0 +1,24 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "freeintv";
+  version = "0-unstable-2024-06-28";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "freeintv";
+    rev = "6bd91d0d83d896e66b9fd7e5e239f93f00e4ad87";
+    hash = "sha256-P3devj/aAa0e/QpV68kQkLAvhrVGO8O8ijkUAobgUb0=";
+  };
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "FreeIntv libretro port";
+    homepage = "https://github.com/libretro/freeintv";
+    license = lib.licenses.gpl3Only;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/fuse.nix b/pkgs/applications/emulators/retroarch/cores/fuse.nix
new file mode 100644
index 000000000000..a4e954ac109f
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/fuse.nix
@@ -0,0 +1,22 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "fuse";
+  version = "0-unstable-2024-09-20";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "fuse-libretro";
+    rev = "6fd07d90acc38a1b8835bf16539b833f21aaa38f";
+    hash = "sha256-q5vcFNr1RBeTaw1R2LDY9xLU1oGeWtPemTdliWR+39s=";
+  };
+
+  meta = {
+    description = "Port of the Fuse Unix Spectrum Emulator to libretro";
+    homepage = "https://github.com/libretro/fuse-libretro";
+    license = lib.licenses.gpl3Only;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/gambatte.nix b/pkgs/applications/emulators/retroarch/cores/gambatte.nix
new file mode 100644
index 000000000000..90840af74960
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/gambatte.nix
@@ -0,0 +1,22 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "gambatte";
+  version = "0-unstable-2024-10-04";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "gambatte-libretro";
+    rev = "3eeb65e9bcf4b2a7ca24c5cebdfa7e342177ef0f";
+    hash = "sha256-tNGMR6GIyXen9+Ktg3IvYTcPidc+5Z8TpBQu1YgmqlY=";
+  };
+
+  meta = {
+    description = "Gambatte libretro port";
+    homepage = "https://github.com/libretro/gambatte-libretro";
+    license = lib.licenses.gpl2Only;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/genesis-plus-gx.nix b/pkgs/applications/emulators/retroarch/cores/genesis-plus-gx.nix
new file mode 100644
index 000000000000..caf2d667ba95
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/genesis-plus-gx.nix
@@ -0,0 +1,22 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "genesis-plus-gx";
+  version = "0-unstable-2024-09-18";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "Genesis-Plus-GX";
+    rev = "7de0f0b6cde9bda1235b448aa607044b3f80ab3c";
+    hash = "sha256-W06vSrGKbXMcXIouW9/fD93sBfwREqIL8HvB3kan0tM=";
+  };
+
+  meta = {
+    description = "Enhanced Genesis Plus libretro port";
+    homepage = "https://github.com/libretro/Genesis-Plus-GX";
+    license = lib.licenses.unfreeRedistributable;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/gpsp.nix b/pkgs/applications/emulators/retroarch/cores/gpsp.nix
new file mode 100644
index 000000000000..cd4c55e916c6
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/gpsp.nix
@@ -0,0 +1,24 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "gpsp";
+  version = "0-unstable-2024-09-18";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "gpsp";
+    rev = "36061caf8cc5e15c3c92fb772b6b8560c7c59ec7";
+    hash = "sha256-o36OUdgm7p+rAMN6R2e2Lqi4oBLTyxziw7Lr20ERBg0=";
+  };
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "Port of gpSP to libretro";
+    homepage = "https://github.com/libretro/gpsp";
+    license = lib.licenses.gpl2Only;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/gw.nix b/pkgs/applications/emulators/retroarch/cores/gw.nix
new file mode 100644
index 000000000000..274bb2dfced4
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/gw.nix
@@ -0,0 +1,24 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "gw";
+  version = "0-unstable-2024-10-21";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "gw-libretro";
+    rev = "435e5cfd4bf6aea03a84259e9b8dba3daf3ff5bd";
+    hash = "sha256-csaOqrZMSk9xZUlGAKgypV38q9XE7K6hLLdBC10g9Ao=";
+  };
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "Port of Game and Watch to libretro";
+    homepage = "https://github.com/libretro/gw-libretro";
+    license = lib.licenses.zlib;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/handy.nix b/pkgs/applications/emulators/retroarch/cores/handy.nix
new file mode 100644
index 000000000000..fe046d5eaf38
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/handy.nix
@@ -0,0 +1,24 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "handy";
+  version = "0-unstable-2024-10-21";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "libretro-handy";
+    rev = "4e9e072796e5552a9d57f6ab83b3f85f27b17fb6";
+    hash = "sha256-ThzFEqLCX2JC06n6GZgkGzX5sFY5CxFDjkeekXRmbXY=";
+  };
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "Port of Handy to libretro";
+    homepage = "https://github.com/libretro/libretro-handy";
+    license = lib.licenses.zlib;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/hatari.nix b/pkgs/applications/emulators/retroarch/cores/hatari.nix
new file mode 100644
index 000000000000..0daef12b19dd
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/hatari.nix
@@ -0,0 +1,28 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+  which,
+}:
+mkLibretroCore {
+  core = "hatari";
+  version = "0-unstable-2024-10-21";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "hatari";
+    rev = "7008194d3f951a157997f67a820578f56f7feee0";
+    hash = "sha256-ZPzwUBaxs2ivE9n9cb5XB5mhixY9b6qIlq7OiVSLbqg=";
+  };
+
+  extraNativeBuildInputs = [ which ];
+  dontConfigure = true;
+  # zlib is already included in mkLibretroCore as buildInputs
+  makeFlags = [ "EXTERNAL_ZLIB=1" ];
+
+  meta = {
+    description = "Port of Hatari to libretro";
+    homepage = "https://github.com/libretro/hatari";
+    license = lib.licenses.gpl2Only;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/mame.nix b/pkgs/applications/emulators/retroarch/cores/mame.nix
new file mode 100644
index 000000000000..85b034aa599a
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/mame.nix
@@ -0,0 +1,39 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+  python3,
+  alsa-lib,
+  libGLU,
+  libGL,
+}:
+mkLibretroCore {
+  core = "mame";
+  version = "0-unstable-2024-11-01";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "mame";
+    rev = "a67797ad2f7516906ed7acef87569c6f35ca8739";
+    hash = "sha256-MF6MWQftHBYL1Uv3ZYKFqCH24nd1+M73rhUzkdftMzk=";
+    fetchSubmodules = true;
+  };
+
+  extraNativeBuildInputs = [ python3 ];
+  extraBuildInputs = [
+    alsa-lib
+    libGLU
+    libGL
+  ];
+  # Setting this is breaking compilation of src/3rdparty/genie for some reason
+  makeFlags = [ "ARCH=" ];
+
+  meta = {
+    description = "Port of MAME to libretro";
+    homepage = "https://github.com/libretro/mame";
+    license = with lib.licenses; [
+      bsd3
+      gpl2Plus
+    ];
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/mame2000.nix b/pkgs/applications/emulators/retroarch/cores/mame2000.nix
new file mode 100644
index 000000000000..fd3448e8cb37
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/mame2000.nix
@@ -0,0 +1,27 @@
+{
+  lib,
+  stdenv,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "mame2000";
+  version = "0-unstable-2024-11-01";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "mame2000-libretro";
+    rev = "2ec60f6e1078cf9ba173e80432cc28fd4eea200f";
+    hash = "sha256-AYZj7bvO9oc7wmEBbj6DPRzpQFHl8diIcunSSpD4Vok=";
+  };
+
+  makefile = "Makefile";
+  makeFlags = lib.optional (!stdenv.hostPlatform.isx86) "IS_X86=0";
+
+  meta = {
+    description = "Port of MAME ~2000 to libretro, compatible with MAME 0.37b5 sets";
+    homepage = "https://github.com/libretro/mame2000-libretro";
+    # MAME license, non-commercial clause
+    license = lib.licenses.unfreeRedistributable;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/mame2003-plus.nix b/pkgs/applications/emulators/retroarch/cores/mame2003-plus.nix
new file mode 100644
index 000000000000..d895438cef5e
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/mame2003-plus.nix
@@ -0,0 +1,25 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "mame2003-plus";
+  version = "0-unstable-2024-11-01";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "mame2003-plus-libretro";
+    rev = "b00ea1c9574126d75ae7b80c3b41e1186421fc1d";
+    hash = "sha256-Zq4P5UsZh3p9/zasfTC+pzWiLAo7T2qAgZw4bJ4ADdM=";
+  };
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "Port of MAME ~2003+ to libretro, compatible with MAME 0.78 sets";
+    homepage = "https://github.com/libretro/mame2003-plus-libretro";
+    # MAME license, non-commercial clause
+    license = lib.licenses.unfreeRedistributable;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/mame2003.nix b/pkgs/applications/emulators/retroarch/cores/mame2003.nix
new file mode 100644
index 000000000000..47b83ea80c5c
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/mame2003.nix
@@ -0,0 +1,25 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "mame2003";
+  version = "0-unstable-2024-11-01";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "mame2003-libretro";
+    rev = "6d543115531fc96422b73c989a628600cacbea50";
+    hash = "sha256-jFzFQVB0uiSRa82sq1fiMEXyzzDJqRANNgq5hj/ZAl4=";
+  };
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "Port of MAME ~2003 to libretro, compatible with MAME 0.78 sets";
+    homepage = "https://github.com/libretro/mame2003-libretro";
+    # MAME license, non-commercial clause
+    license = lib.licenses.unfreeRedistributable;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/mame2010.nix b/pkgs/applications/emulators/retroarch/cores/mame2010.nix
new file mode 100644
index 000000000000..52fa54a76408
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/mame2010.nix
@@ -0,0 +1,32 @@
+{
+  lib,
+  stdenv,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "mame2010";
+  version = "0-unstable-2024-10-23";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "mame2010-libretro";
+    rev = "c5b413b71e0a290c57fc351562cd47ba75bac105";
+    hash = "sha256-p+uEhxjr/07YJxInhW7oJDr8KurD36JxnSfJo17FOxM=";
+  };
+
+  makefile = "Makefile";
+  makeFlags = lib.optionals stdenv.hostPlatform.isAarch64 [
+    "PTR64=1"
+    "ARM_ENABLED=1"
+    "X86_SH2DRC=0"
+    "FORCE_DRC_C_BACKEND=1"
+  ];
+
+  meta = {
+    description = "Port of MAME ~2010 to libretro, compatible with MAME 0.139 sets";
+    homepage = "https://github.com/libretro/mame2010-libretro";
+    # MAME license, non-commercial clause
+    license = lib.licenses.unfreeRedistributable;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/mame2015.nix b/pkgs/applications/emulators/retroarch/cores/mame2015.nix
new file mode 100644
index 000000000000..8096a99a089d
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/mame2015.nix
@@ -0,0 +1,32 @@
+{
+  lib,
+  alsa-lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+  python3,
+}:
+mkLibretroCore {
+  core = "mame2015";
+  version = "0-unstable-2023-11-01";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "mame2015-libretro";
+    rev = "316cd06349f2b34b4719f04f7c0d07569a74c764";
+    hash = "sha256-CBN04Jf26SIk8mKWlui5spQGokBvgFUCvFiC8NoBGw0=";
+  };
+
+  patches = [ ./patches/mame2015-python311.patch ];
+  makeFlags = [ "PYTHON=python3" ];
+  extraNativeBuildInputs = [ python3 ];
+  extraBuildInputs = [ alsa-lib ];
+  makefile = "Makefile";
+  # Build failures when this is set to a bigger number
+  NIX_BUILD_CORES = 8;
+  meta = {
+    description = "Port of MAME ~2015 to libretro, compatible with MAME 0.160 sets";
+    homepage = "https://github.com/libretro/mame2015-libretro";
+    # MAME license, non-commercial clause
+    license = lib.licenses.unfreeRedistributable;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/mame2016.nix b/pkgs/applications/emulators/retroarch/cores/mame2016.nix
new file mode 100644
index 000000000000..31e929b7089a
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/mame2016.nix
@@ -0,0 +1,36 @@
+{
+  lib,
+  alsa-lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+  python3,
+}:
+mkLibretroCore {
+  core = "mame2016";
+  version = "0-unstable-2024-04-06";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "mame2016-libretro";
+    rev = "01058613a0109424c4e7211e49ed83ac950d3993";
+    hash = "sha256-IsM7f/zlzvomVOYlinJVqZllUhDfy4NNTeTPtNmdVak=";
+  };
+
+  patches = [ ./patches/mame2016-python311.patch ];
+  extraNativeBuildInputs = [ python3 ];
+  extraBuildInputs = [ alsa-lib ];
+  makeFlags = [ "PYTHON_EXECUTABLE=python3" ];
+  # Build failures when this is set to a bigger number
+  NIX_BUILD_CORES = 8;
+  # Fix build errors in GCC13
+  NIX_CFLAGS_COMPILE = "-Wno-error -fpermissive";
+
+  meta = {
+    description = "Port of MAME ~2016 to libretro, compatible with MAME 0.174 sets";
+    homepage = "https://github.com/libretro/mame2016-libretro";
+    license = with lib.licenses; [
+      bsd3
+      gpl2Plus
+    ];
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/melonds.nix b/pkgs/applications/emulators/retroarch/cores/melonds.nix
new file mode 100644
index 000000000000..59e0676a5594
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/melonds.nix
@@ -0,0 +1,30 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+  libGLU,
+  libGL,
+}:
+mkLibretroCore {
+  core = "melonds";
+  version = "0-unstable-2024-10-21";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "melonds";
+    rev = "7a3c11ff970cd36ca806961fae6db94b30dd5401";
+    hash = "sha256-YGkRdth7qdATcZpJkBd5MGOJFG1AbeJhAnyir+ssZYA=";
+  };
+
+  extraBuildInputs = [
+    libGLU
+    libGL
+  ];
+  makefile = "Makefile";
+
+  meta = {
+    description = "Port of MelonDS to libretro";
+    homepage = "https://github.com/libretro/melonds";
+    license = lib.licenses.gpl3Only;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/mesen-s.nix b/pkgs/applications/emulators/retroarch/cores/mesen-s.nix
new file mode 100644
index 000000000000..ea349e193621
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/mesen-s.nix
@@ -0,0 +1,26 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "mesen-s";
+  version = "0-unstable-2024-10-21";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "mesen-s";
+    rev = "d4fca31a6004041d99b02199688f84c009c55967";
+    hash = "sha256-mGGTLBRJCsNJg57LWSFndIv/LLzEmVRnv6gNbllkV/Y=";
+  };
+
+  makefile = "Makefile";
+  preBuild = "cd Libretro";
+  normalizeCore = false;
+
+  meta = {
+    description = "Port of Mesen-S to libretro";
+    homepage = "https://github.com/libretro/mesen-s";
+    license = lib.licenses.gpl3Only;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/mesen.nix b/pkgs/applications/emulators/retroarch/cores/mesen.nix
new file mode 100644
index 000000000000..3c6c9bb9399e
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/mesen.nix
@@ -0,0 +1,25 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "mesen";
+  version = "0-unstable-2024-06-09";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "mesen";
+    rev = "91db6be681f70b2080525c267af6132555323ea1";
+    hash = "sha256-rw/bwHaeglO/DPeOCFHAWF5Y5DXVKiteO4bWZjTB4rI=";
+  };
+
+  makefile = "Makefile";
+  preBuild = "cd Libretro";
+
+  meta = {
+    description = "Port of Mesen to libretro";
+    homepage = "https://github.com/libretro/mesen";
+    license = lib.licenses.gpl3Only;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/meteor.nix b/pkgs/applications/emulators/retroarch/cores/meteor.nix
new file mode 100644
index 000000000000..f1e5b1c55121
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/meteor.nix
@@ -0,0 +1,25 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "meteor";
+  version = "0-unstable-2020-12-28";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "meteor-libretro";
+    rev = "e533d300d0561564451bde55a2b73119c768453c";
+    hash = "sha256-zMkgzUz2rk0SD5ojY4AqaDlNM4k4QxuUxVBRBcn6TqQ=";
+  };
+
+  makefile = "Makefile";
+  preBuild = "cd libretro";
+
+  meta = {
+    description = "Port of Meteor to libretro";
+    homepage = "https://github.com/libretro/meteor";
+    license = lib.licenses.gpl3Only;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/mgba.nix b/pkgs/applications/emulators/retroarch/cores/mgba.nix
new file mode 100644
index 000000000000..02bd1e8b837c
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/mgba.nix
@@ -0,0 +1,22 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "mgba";
+  version = "0-unstable-2024-11-12";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "mgba";
+    rev = "747362c02d2e71ee7c363e8dcb240925be8af906";
+    hash = "sha256-dBhdS6C1H02iwdYDVvJmkPWob81vpmQJdHUHJFAq2vo=";
+  };
+
+  meta = {
+    description = "Port of mGBA to libretro";
+    homepage = "https://github.com/libretro/mgba";
+    license = lib.licenses.mpl20;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/mrboom.nix b/pkgs/applications/emulators/retroarch/cores/mrboom.nix
new file mode 100644
index 000000000000..dcb6aaecf9ec
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/mrboom.nix
@@ -0,0 +1,26 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore rec {
+  core = "mrboom";
+  version = "0-unstable-2024-07-01";
+
+  src = fetchFromGitHub {
+    owner = "Javanaise";
+    repo = "mrboom-libretro";
+    rev = "22765ce7176d236d846f504318a51c448d2b469b";
+    hash = "sha256-hzdc4PM/EARNEtpeATo4VohXtkeBra6rCz3tdIgBfVw=";
+    fetchSubmodules = true;
+  };
+
+  makefile = "Makefile";
+  makeFlags = [ "GIT_VERSION=${builtins.substring 0 7 src.rev}" ];
+
+  meta = {
+    description = "Port of Mr.Boom to libretro";
+    homepage = "https://github.com/Javanaise/mrboom-libretro";
+    license = lib.licenses.mit;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/mupen64plus.nix b/pkgs/applications/emulators/retroarch/cores/mupen64plus.nix
new file mode 100644
index 000000000000..bf455e034deb
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/mupen64plus.nix
@@ -0,0 +1,44 @@
+{
+  lib,
+  stdenv,
+  fetchFromGitHub,
+  libGL,
+  libGLU,
+  libpng,
+  mkLibretroCore,
+  nasm,
+  xorg,
+}:
+mkLibretroCore {
+  core = "mupen64plus-next";
+  version = "0-unstable-2024-10-29";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "mupen64plus-libretro-nx";
+    rev = "4249e39b2c200e5f0895385f76d99928785f2bea";
+    hash = "sha256-nII/PMYo2xLznmAcKs6jDWGRS1DC3tiDeT6KJKRnaCI=";
+  };
+
+  extraBuildInputs = [
+    libGLU
+    libGL
+    libpng
+    nasm
+    xorg.libX11
+  ];
+  makefile = "Makefile";
+  makeFlags = [
+    "HAVE_PARALLEL_RDP=1"
+    "HAVE_PARALLEL_RSP=1"
+    "HAVE_THR_AL=1"
+    "LLE=1"
+    "WITH_DYNAREC=${stdenv.hostPlatform.parsed.cpu.name}"
+  ];
+
+  meta = {
+    description = "Libretro port of Mupen64 Plus";
+    homepage = "https://github.com/libretro/mupen64plus-libretro-nx";
+    license = lib.licenses.gpl3Only;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/neocd.nix b/pkgs/applications/emulators/retroarch/cores/neocd.nix
new file mode 100644
index 000000000000..55fce9c5e269
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/neocd.nix
@@ -0,0 +1,24 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "neocd";
+  version = "0-unstable-2024-10-21";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "neocd_libretro";
+    rev = "5eca2c8fd567b5261251c65ecafa8cf5b179d1d2";
+    hash = "sha256-72tmPCb7AXsamaQsMAPiYpgDR8DER2GTz4hcbN8wy7g=";
+  };
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "NeoCD libretro port";
+    homepage = "https://github.com/libretro/neocd_libretro";
+    license = lib.licenses.lgpl3Only;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/nestopia.nix b/pkgs/applications/emulators/retroarch/cores/nestopia.nix
new file mode 100644
index 000000000000..0275db2c133e
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/nestopia.nix
@@ -0,0 +1,25 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "nestopia";
+  version = "0-unstable-2024-10-17";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "nestopia";
+    rev = "b932740e8abbe2cda80d06b083fdd8115af1c5d5";
+    hash = "sha256-lIWk3V93vTKZM/jvfLkA06c7DDSEQtLmqRzJUi0TK/4=";
+  };
+
+  makefile = "Makefile";
+  preBuild = "cd libretro";
+
+  meta = {
+    description = "Nestopia libretro port";
+    homepage = "https://github.com/libretro/nestopia";
+    license = lib.licenses.gpl2Only;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/np2kai.nix b/pkgs/applications/emulators/retroarch/cores/np2kai.nix
new file mode 100644
index 000000000000..2ca6b2fba9c6
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/np2kai.nix
@@ -0,0 +1,31 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore rec {
+  core = "np2kai";
+  version = "0-unstable-2024-11-03";
+
+  src = fetchFromGitHub {
+    owner = "AZO234";
+    repo = "NP2kai";
+    rev = "4b109eaac4f79b04065ff5025319fce51537e04d";
+    hash = "sha256-tRFvK8d5Y/umy/b1BKN85ZSaDWyK95hII4RVng7A5uU=";
+    fetchSubmodules = true;
+  };
+
+  makeFlags = [
+    # See https://github.com/AZO234/NP2kai/tags
+    "NP2KAI_VERSION=rev.22"
+    "NP2KAI_HASH=${builtins.substring 0 7 src.rev}"
+  ];
+
+  preBuild = "cd sdl";
+
+  meta = {
+    description = "Neko Project II kai libretro port";
+    homepage = "https://github.com/AZO234/NP2kai";
+    license = lib.licenses.mit;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/nxengine.nix b/pkgs/applications/emulators/retroarch/cores/nxengine.nix
new file mode 100644
index 000000000000..c9712892daab
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/nxengine.nix
@@ -0,0 +1,24 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "nxengine";
+  version = "0-unstable-2024-10-21";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "nxengine-libretro";
+    rev = "9adc032a5f6aa913d71d22042bb72cb11cf0f4a2";
+    hash = "sha256-8XjZp18lQU3xFNDjIuNsSHn7Mhba8Lze/IeRsy8/U1U=";
+  };
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "NXEngine libretro port";
+    homepage = "https://github.com/libretro/nxengine-libretro";
+    license = lib.licenses.gpl3Only;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/o2em.nix b/pkgs/applications/emulators/retroarch/cores/o2em.nix
new file mode 100644
index 000000000000..e5deb54ea7dd
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/o2em.nix
@@ -0,0 +1,24 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "o2em";
+  version = "0-unstable-2024-06-28";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "libretro-o2em";
+    rev = "c8f458d035392963823fbb50db0cec0033d9315f";
+    hash = "sha256-riqMXm+3BG4Gz0wrmVFxtVhuMRtZHZqCViAupp/Q42U=";
+  };
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "Port of O2EM to libretro";
+    homepage = "https://github.com/libretro/libretro-o2em";
+    license = lib.licenses.artistic1;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/opera.nix b/pkgs/applications/emulators/retroarch/cores/opera.nix
new file mode 100644
index 000000000000..5b3c12b73f52
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/opera.nix
@@ -0,0 +1,26 @@
+{
+  lib,
+  stdenv,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "opera";
+  version = "0-unstable-2024-10-17";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "opera-libretro";
+    rev = "67a29e60a4d194b675c9272b21b61eaa022f3ba3";
+    hash = "sha256-8896EWNbzVyr3MS1jtWD3pLur7ZvAhhJmrwkW3ayzkU=";
+  };
+
+  makefile = "Makefile";
+  makeFlags = [ "CC_PREFIX=${stdenv.cc.targetPrefix}" ];
+
+  meta = {
+    description = "Opera is a port of 4DO/libfreedo to libretro";
+    homepage = "https://github.com/libretro/libretro-o2em";
+    license = lib.licenses.unfreeRedistributable;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/parallel-n64.nix b/pkgs/applications/emulators/retroarch/cores/parallel-n64.nix
new file mode 100644
index 000000000000..48ae3d922650
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/parallel-n64.nix
@@ -0,0 +1,42 @@
+{
+  lib,
+  stdenv,
+  fetchFromGitHub,
+  libGL,
+  libGLU,
+  libpng,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "parallel-n64";
+  version = "0-unstable-2024-10-21";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "parallel-n64";
+    rev = "e372c5e327dcd649e9d840ffc3d88480b6866eda";
+    hash = "sha256-q4octB5XDdl4PtLYVZfBgydVBNaOwzu9dPBY+Y68lVo=";
+  };
+
+  extraBuildInputs = [
+    libGLU
+    libGL
+    libpng
+  ];
+  makefile = "Makefile";
+  makeFlags = [
+    "HAVE_PARALLEL=1"
+    "HAVE_PARALLEL_RSP=1"
+    "ARCH=${stdenv.hostPlatform.parsed.cpu.name}"
+  ];
+  postPatch = lib.optionalString stdenv.hostPlatform.isAarch64 ''
+    sed -i -e '1 i\CPUFLAGS += -DARM_FIX -DNO_ASM -DARM_ASM -DDONT_WANT_ARM_OPTIMIZATIONS -DARM64' Makefile \
+    && sed -i -e 's,CPUFLAGS  :=,,g' Makefile
+  '';
+
+  meta = {
+    description = "Parallel Mupen64plus rewrite for libretro";
+    homepage = "https://github.com/libretro/parallel-n64";
+    license = lib.licenses.gpl3Only;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/patches/mame2015-python311.patch b/pkgs/applications/emulators/retroarch/cores/patches/mame2015-python311.patch
similarity index 100%
rename from pkgs/applications/emulators/retroarch/patches/mame2015-python311.patch
rename to pkgs/applications/emulators/retroarch/cores/patches/mame2015-python311.patch
diff --git a/pkgs/applications/emulators/retroarch/patches/mame2016-python311.patch b/pkgs/applications/emulators/retroarch/cores/patches/mame2016-python311.patch
similarity index 100%
rename from pkgs/applications/emulators/retroarch/patches/mame2016-python311.patch
rename to pkgs/applications/emulators/retroarch/cores/patches/mame2016-python311.patch
diff --git a/pkgs/applications/emulators/retroarch/cores/pcsx-rearmed.nix b/pkgs/applications/emulators/retroarch/cores/pcsx-rearmed.nix
new file mode 100644
index 000000000000..d96f80d1ceb0
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/pcsx-rearmed.nix
@@ -0,0 +1,24 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "pcsx-rearmed";
+  version = "0-unstable-2024-11-17";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "pcsx_rearmed";
+    rev = "e3d7ea45c75f2752e351d5c5b54cf7e79e66d26e";
+    hash = "sha256-dJqomyUHYQ+vpyu7/w2S/NidgYbHiGBWjebFQAXjzI0=";
+  };
+
+  dontConfigure = true;
+
+  meta = {
+    description = "Port of PCSX ReARMed to libretro";
+    homepage = "https://github.com/libretro/pcsx_rearmed";
+    license = lib.licenses.gpl2Only;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/pcsx2.nix b/pkgs/applications/emulators/retroarch/cores/pcsx2.nix
new file mode 100644
index 000000000000..09a80f4dbe86
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/pcsx2.nix
@@ -0,0 +1,64 @@
+{
+  lib,
+  cmake,
+  fetchFromGitHub,
+  gcc12Stdenv,
+  gettext,
+  libGL,
+  libGLU,
+  libaio,
+  libpcap,
+  libpng,
+  libxml2,
+  mkLibretroCore,
+  pkg-config,
+  xxd,
+  xz,
+}:
+mkLibretroCore {
+  core = "pcsx2";
+  version = "0-unstable-2023-01-30";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "lrps2";
+    rev = "f3c8743d6a42fe429f703b476fecfdb5655a98a9";
+    hash = "sha256-0piCNWX7QbZ58KyTlWp4h1qLxXpi1z6ML8sBHMTvCY4=";
+  };
+
+  extraNativeBuildInputs = [
+    cmake
+    gettext
+    pkg-config
+  ];
+  extraBuildInputs = [
+    libaio
+    libGL
+    libGLU
+    libpcap
+    libpng
+    libxml2
+    xz
+    xxd
+  ];
+  makefile = "Makefile";
+  cmakeFlags = [ "-DLIBRETRO=ON" ];
+  # remove ccache
+  postPatch = ''
+    substituteInPlace CMakeLists.txt --replace-fail "ccache" ""
+  '';
+  postBuild = "cd pcsx2";
+  # causes redefinition of _FORTIFY_SOURCE
+  hardeningDisable = [ "fortify3" ];
+  # FIXME: multiple build errors with GCC13.
+  # Unlikely to be fixed until we switch to libretro/pcsx2 that is a more
+  # up-to-date port (but still WIP).
+  stdenv = gcc12Stdenv;
+
+  meta = {
+    description = "Port of PCSX2 to libretro";
+    homepage = "https://github.com/libretro/lrps2";
+    license = lib.licenses.gpl3Plus;
+    platforms = lib.platforms.x86;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/picodrive.nix b/pkgs/applications/emulators/retroarch/cores/picodrive.nix
new file mode 100644
index 000000000000..7d3b3065e661
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/picodrive.nix
@@ -0,0 +1,25 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "picodrive";
+  version = "0-unstable-2024-10-19";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "picodrive";
+    rev = "0daf92b57fba1fdbc124651573e88373eef28aa5";
+    hash = "sha256-rvgcGNpHhjHpg5q6qiu08lBn+Zjx87E5/Q98gPoffhE=";
+    fetchSubmodules = true;
+  };
+
+  dontConfigure = true;
+
+  meta = {
+    description = "Fast MegaDrive/MegaCD/32X emulator";
+    homepage = "https://github.com/libretro/picodrive";
+    license = lib.licenses.unfreeRedistributable;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/play.nix b/pkgs/applications/emulators/retroarch/cores/play.nix
new file mode 100644
index 000000000000..f87380b7e62d
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/play.nix
@@ -0,0 +1,53 @@
+{
+  lib,
+  boost,
+  bzip2,
+  cmake,
+  curl,
+  fetchFromGitHub,
+  icu,
+  libGL,
+  libGLU,
+  mkLibretroCore,
+  openssl,
+  xorg,
+}:
+mkLibretroCore {
+  core = "play";
+  version = "0-unstable-2024-10-19";
+
+  src = fetchFromGitHub {
+    owner = "jpd002";
+    repo = "Play-";
+    rev = "c3cba5418b4e5618befd9c2790498cf3cf88372a";
+    hash = "sha256-xO2Pgl1E0JFEsthTmG+Ka+NqOTWG/JeeAIa6wBWXJyc=";
+    fetchSubmodules = true;
+  };
+
+  extraBuildInputs = [
+    boost
+    bzip2
+    curl
+    openssl
+    icu
+    libGL
+    libGLU
+    xorg.libX11
+  ];
+  extraNativeBuildInputs = [ cmake ];
+  makefile = "Makefile";
+  cmakeFlags = [
+    "-DBUILD_PLAY=OFF"
+    "-DBUILD_LIBRETRO_CORE=ON"
+  ];
+  postBuild = "cd Source/ui_libretro";
+  # FIXME: workaround the following GCC 13 error:
+  # error: 'printf' was not declared in this scop
+  env.CXXFLAGS = "-include cstdio";
+
+  meta = {
+    description = "Port of Play! to libretro";
+    homepage = "https://github.com/jpd002/Play-";
+    license = lib.licenses.bsd2;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/ppsspp.nix b/pkgs/applications/emulators/retroarch/cores/ppsspp.nix
new file mode 100644
index 000000000000..7339294e0767
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/ppsspp.nix
@@ -0,0 +1,55 @@
+{
+  lib,
+  cmake,
+  fetchFromGitHub,
+  libGL,
+  libGLU,
+  libzip,
+  mkLibretroCore,
+  pkg-config,
+  python3,
+  snappy,
+  xorg,
+}:
+mkLibretroCore {
+  core = "ppsspp";
+  version = "0-unstable-2024-11-15";
+
+  src = fetchFromGitHub {
+    owner = "hrydgard";
+    repo = "ppsspp";
+    rev = "2402eea4b16908ad59079bcf3fab06ba63531a3c";
+    hash = "sha256-bpeiZdcXkGWLFZOsxTGuVmo4xAiUb9v5Wf6pWkt5JV0=";
+    fetchSubmodules = true;
+  };
+
+  extraNativeBuildInputs = [
+    cmake
+    pkg-config
+    python3
+  ];
+  extraBuildInputs = [
+    libGLU
+    libGL
+    libzip
+    snappy
+    xorg.libX11
+  ];
+  makefile = "Makefile";
+  cmakeFlags = [
+    "-DLIBRETRO=ON"
+    # USE_SYSTEM_FFMPEG=ON causes several glitches during video playback
+    # See: https://github.com/NixOS/nixpkgs/issues/304616
+    "-DUSE_SYSTEM_FFMPEG=OFF"
+    "-DUSE_SYSTEM_SNAPPY=ON"
+    "-DUSE_SYSTEM_LIBZIP=ON"
+    "-DOpenGL_GL_PREFERENCE=GLVND"
+  ];
+  postBuild = "cd lib";
+
+  meta = {
+    description = "PPSSPP libretro port";
+    homepage = "https://github.com/hrydgard/ppsspp";
+    license = lib.licenses.gpl2Plus;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/prboom.nix b/pkgs/applications/emulators/retroarch/cores/prboom.nix
new file mode 100644
index 000000000000..64d4e28d286f
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/prboom.nix
@@ -0,0 +1,24 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "prboom";
+  version = "0-unstable-2024-10-21";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "libretro-prboom";
+    rev = "d25ccfb9739069824d8fff99e3ae78a58a09df01";
+    hash = "sha256-IaMreS2MSkFdZ3Jff2FOZBvKIIa4KIkp41LIg3PLl44=";
+  };
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "Prboom libretro port";
+    homepage = "https://github.com/libretro/libretro-prboom";
+    license = lib.licenses.gpl2Only;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/prosystem.nix b/pkgs/applications/emulators/retroarch/cores/prosystem.nix
new file mode 100644
index 000000000000..4e202e6a2bb3
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/prosystem.nix
@@ -0,0 +1,24 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "prosystem";
+  version = "0-unstable-2024-10-21";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "prosystem-libretro";
+    rev = "acae250da8d98b8b9707cd499e2a0bf6d8500652";
+    hash = "sha256-AGF3K3meZEEsnzHmMTCsFXBGNvWVELH8a8qET07kP0o=";
+  };
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "Port of ProSystem to libretro";
+    homepage = "https://github.com/libretro/prosystem-libretro";
+    license = lib.licenses.gpl2Only;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/puae.nix b/pkgs/applications/emulators/retroarch/cores/puae.nix
new file mode 100644
index 000000000000..07cc1c006023
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/puae.nix
@@ -0,0 +1,24 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "puae";
+  version = "0-unstable-2024-10-19";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "libretro-uae";
+    rev = "c60e42ef9ad474518d4be859b7c1da2c0c7e1d6f";
+    hash = "sha256-WCkz7BUgYaI+yRhPmNuOKGJC/GxV+n2aeJVn8vhx0Ng=";
+  };
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "Amiga emulator based on WinUAE";
+    homepage = "https://github.com/libretro/libretro-uae";
+    license = lib.licenses.gpl2Only;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/quicknes.nix b/pkgs/applications/emulators/retroarch/cores/quicknes.nix
new file mode 100644
index 000000000000..365a64725c7a
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/quicknes.nix
@@ -0,0 +1,24 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "quicknes";
+  version = "0-unstable-2024-10-21";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "QuickNES_Core";
+    rev = "dbf19f73e3eb9701d1c7f5898f57c097e05c9fbd";
+    hash = "sha256-oFQUMp1imc8JCsQYCy1BtIUmTC+u0VcoYHpWzUpKNb4=";
+  };
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "QuickNES libretro port";
+    homepage = "https://github.com/libretro/QuickNES_Core";
+    license = lib.licenses.lgpl21Plus;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/same_cdi.nix b/pkgs/applications/emulators/retroarch/cores/same_cdi.nix
new file mode 100644
index 000000000000..5a9611ac25a9
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/same_cdi.nix
@@ -0,0 +1,44 @@
+{
+  lib,
+  alsa-lib,
+  fetchFromGitHub,
+  gcc12Stdenv,
+  libGL,
+  libGLU,
+  mkLibretroCore,
+  portaudio,
+  python3,
+  xorg,
+}:
+mkLibretroCore {
+  core = "same_cdi";
+  version = "0-unstable-2023-02-28";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "same_cdi";
+    rev = "54cf493c2dee4c46666059c452f8aaaa0bd7c8e0";
+    hash = "sha256-/+4coMzj/o82Q04Z65DQiPaykK6N56W6PRQLtyJOd8E=";
+  };
+
+  extraNativeBuildInputs = [ python3 ];
+  extraBuildInputs = [
+    alsa-lib
+    libGL
+    libGLU
+    portaudio
+    xorg.libX11
+  ];
+  # FIXME = build fail with GCC13:
+  # error = 'uint8_t' in namespace 'std' does not name a type; did you mean 'wint_t'?
+  stdenv = gcc12Stdenv;
+
+  meta = {
+    description = "SAME_CDI is a libretro core to play CD-i games";
+    homepage = "https://github.com/libretro/same_cdi";
+    license = with lib.licenses; [
+      bsd3
+      gpl2Plus
+    ];
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/sameboy.nix b/pkgs/applications/emulators/retroarch/cores/sameboy.nix
new file mode 100644
index 000000000000..252976e3f85a
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/sameboy.nix
@@ -0,0 +1,31 @@
+{
+  lib,
+  fetchFromGitHub,
+  hexdump,
+  mkLibretroCore,
+  which,
+}:
+mkLibretroCore {
+  core = "sameboy";
+  version = "0-unstable-2024-06-28";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "sameboy";
+    rev = "51433012a871a44555492273fd22f29867d12655";
+    hash = "sha256-vPT2uRGbXmJ62yig/yk485/TxEEKHJeWdNrM2c0IjKw=";
+  };
+
+  extraNativeBuildInputs = [
+    which
+    hexdump
+  ];
+  preBuild = "cd libretro";
+  makefile = "Makefile";
+
+  meta = {
+    description = "QuickNES libretro port";
+    homepage = "https://github.com/libretro/QuickNES_Core";
+    license = lib.licenses.mit;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/scummvm.nix b/pkgs/applications/emulators/retroarch/cores/scummvm.nix
new file mode 100644
index 000000000000..6bb0e08778cb
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/scummvm.nix
@@ -0,0 +1,42 @@
+{
+  lib,
+  fetchFromGitHub,
+  fluidsynth,
+  libGL,
+  libGLU,
+  libjpeg,
+  libvorbis,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "scummvm";
+  version = "0-unstable-2022-04-06";
+
+  # This is the old source code before they upstreamed the source code,
+  # so now the libretro related code lives in the scummvm/scummvm repository.
+  # However this broke the old way we were doing builds, so for now point
+  # to a mirror with the old source code until this issue is fixed.
+  # TODO: switch to libretro/scummvm since this is more up-to-date
+  src = fetchFromGitHub {
+    owner = "libretro-mirrors";
+    repo = "scummvm";
+    rev = "2fb2e4c551c9c1510c56f6e890ee0300b7b3fca3";
+    hash = "sha256-wrlFqu+ONbYH4xMFDByOgySobGrkhVc7kYWI4JzA4ew=";
+  };
+
+  extraBuildInputs = [
+    fluidsynth
+    libjpeg
+    libvorbis
+    libGLU
+    libGL
+  ];
+  makefile = "Makefile";
+  preConfigure = "cd backends/platform/libretro/build";
+
+  meta = {
+    description = "Libretro port of ScummVM";
+    homepage = "https://github.com/libretro-mirrors/scummvm";
+    license = lib.licenses.gpl2Only;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/smsplus-gx.nix b/pkgs/applications/emulators/retroarch/cores/smsplus-gx.nix
new file mode 100644
index 000000000000..d0e9569bfc77
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/smsplus-gx.nix
@@ -0,0 +1,22 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "smsplus";
+  version = "0-unstable-2024-10-21";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "smsplus-gx";
+    rev = "c642bbd0680b5959180a420036108893d0aec961";
+    hash = "sha256-SHBrwzLyVZ4Tp/kVCnr4xj2B3pmdg+JUmZUM7hYao64=";
+  };
+
+  meta = {
+    description = "SMS Plus GX libretro port";
+    homepage = "https://github.com/libretro/smsplus-gx";
+    license = lib.licenses.gpl2Plus;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/snes9x.nix b/pkgs/applications/emulators/retroarch/cores/snes9x.nix
new file mode 100644
index 000000000000..9c977d2a4d08
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/snes9x.nix
@@ -0,0 +1,25 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "snes9x";
+  version = "0-unstable-2024-10-28";
+
+  src = fetchFromGitHub {
+    owner = "snes9xgit";
+    repo = "snes9x";
+    rev = "fd05ca7df5259a2cd0aa9204f331e0b05126c376";
+    hash = "sha256-o/Rb1XQ7QoI0hKROMFZ9igyH8NN3bMryvyU4oNUqtRA=";
+  };
+
+  makefile = "Makefile";
+  preBuild = "cd libretro";
+
+  meta = {
+    description = "Port of SNES9x git to libretro";
+    homepage = "https://github.com/snes9xgit/snes9x";
+    license = lib.licenses.unfreeRedistributable;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/snes9x2002.nix b/pkgs/applications/emulators/retroarch/cores/snes9x2002.nix
new file mode 100644
index 000000000000..1f76c95869d2
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/snes9x2002.nix
@@ -0,0 +1,24 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "snes9x2002";
+  version = "0-unstable-2024-10-21";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "snes9x2002";
+    rev = "a0709ec7dcd6de2fbebb43106bd757b649e3b7cf";
+    hash = "sha256-rrMPhXIsQ48fVvjgZgC3xeqm9k9kwe43oZNzs2d/h1Q=";
+  };
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "Optimized port/rewrite of SNES9x 1.39 to Libretro";
+    homepage = "https://github.com/libretro/snes9x2002";
+    license = lib.licenses.unfreeRedistributable;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/snes9x2005.nix b/pkgs/applications/emulators/retroarch/cores/snes9x2005.nix
new file mode 100644
index 000000000000..94e2f2440b18
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/snes9x2005.nix
@@ -0,0 +1,26 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+  withBlarggAPU ? false,
+}:
+mkLibretroCore {
+  core = "snes9x2005" + lib.optionalString withBlarggAPU "-plus";
+  version = "0-unstable-2024-10-21";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "snes9x2005";
+    rev = "74d871db9b4dba6dbe6c5ecebc88cbf255be5349";
+    hash = "sha256-YlRMjSEo9sdLVRzWGSJlnBeqg6wUhZi8l3ffzUaKQIQ=";
+  };
+
+  makefile = "Makefile";
+  makeFlags = lib.optionals withBlarggAPU [ "USE_BLARGG_APU=1" ];
+
+  meta = {
+    description = "Optimized port/rewrite of SNES9x 1.43 to Libretro";
+    homepage = "https://github.com/libretro/snes9x2005";
+    license = lib.licenses.unfreeRedistributable;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/snes9x2010.nix b/pkgs/applications/emulators/retroarch/cores/snes9x2010.nix
new file mode 100644
index 000000000000..a9e1f27911cd
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/snes9x2010.nix
@@ -0,0 +1,24 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore rec {
+  core = "snes9x2010";
+  version = "0-unstable-2024-11-18";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "snes9x2010";
+    rev = "f9ae8fd28b13070a945a829ccf41cbf90a21d0f7";
+    hash = "sha256-nsExAYnzDenPvXzeN60jGykRTrCGMi/mRPV+vgS8ZtE=";
+  };
+
+  makeFlags = [ "GIT_VERSION=${builtins.substring 0 7 src.rev}" ];
+
+  meta = {
+    description = "Optimized port/rewrite of SNES9x 1.52+ to Libretro";
+    homepage = "https://github.com/libretro/snes9x2010";
+    license = lib.licenses.unfreeRedistributable;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/stella.nix b/pkgs/applications/emulators/retroarch/cores/stella.nix
new file mode 100644
index 000000000000..d3028ef6926b
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/stella.nix
@@ -0,0 +1,26 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "stella";
+  version = "0-unstable-2024-11-17";
+
+  src = fetchFromGitHub {
+    owner = "stella-emu";
+    repo = "stella";
+    rev = "0e2ce2771c7d0c9b2dd5c06e3a4746738d3c9e47";
+    hash = "sha256-axt5wvH7WENh1ALPYc+f5XpCv2xPm5jYx26zMhLEt3E=";
+  };
+
+  makefile = "Makefile";
+  preBuild = "cd src/os/libretro";
+  dontConfigure = true;
+
+  meta = {
+    description = "Port of Stella to libretro";
+    homepage = "https://github.com/stella-emu/stella";
+    license = lib.licenses.gpl2Only;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/stella2014.nix b/pkgs/applications/emulators/retroarch/cores/stella2014.nix
new file mode 100644
index 000000000000..467f6f82882b
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/stella2014.nix
@@ -0,0 +1,24 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "stella2014";
+  version = "0-unstable-2024-10-21";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "stella2014-libretro";
+    rev = "3cc89f0d316d6c924a5e3f4011d17421df58e615";
+    hash = "sha256-2gnFWau7F45SdzoqDUlqYXfXVE1EUPozHZv7BhyRRIA=";
+  };
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "Port of Stella ~2014 to libretro";
+    homepage = "https://github.com/libretro/stella2014-libretro";
+    license = lib.licenses.gpl2Only;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/swanstation.nix b/pkgs/applications/emulators/retroarch/cores/swanstation.nix
new file mode 100644
index 000000000000..092060008072
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/swanstation.nix
@@ -0,0 +1,29 @@
+{
+  lib,
+  cmake,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "swanstation";
+  version = "0-unstable-2024-07-24";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "swanstation";
+    rev = "37cd87e14ca09ac1b558e5b2c7db4ad256865bbb";
+    hash = "sha256-dNIxlTPoY4S6VMtTN22ti3DE4aU/8XN/XhAo3DMNR/E=";
+  };
+
+  extraNativeBuildInputs = [ cmake ];
+  makefile = "Makefile";
+  cmakeFlags = [
+    "-DBUILD_LIBRETRO_CORE=ON"
+  ];
+
+  meta = {
+    description = "Port of SwanStation (a fork of DuckStation) to libretro";
+    homepage = "https://github.com/libretro/swanstation";
+    license = lib.licenses.gpl3Only;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/tgbdual.nix b/pkgs/applications/emulators/retroarch/cores/tgbdual.nix
new file mode 100644
index 000000000000..5925125cee29
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/tgbdual.nix
@@ -0,0 +1,24 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "tgbdual";
+  version = "0-unstable-2024-10-21";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "tgbdual-libretro";
+    rev = "8d305769eebd67266c284558f9d3a30498894d3d";
+    hash = "sha256-3mlnTgp43qC3yifpr6pvtC4vslddcf6mephKA183vEk=";
+  };
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "Port of TGBDual to libretro";
+    homepage = "https://github.com/libretro/tgbdual-libretro";
+    license = lib.licenses.gpl2Only;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/thepowdertoy.nix b/pkgs/applications/emulators/retroarch/cores/thepowdertoy.nix
new file mode 100644
index 000000000000..ae74646706e2
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/thepowdertoy.nix
@@ -0,0 +1,27 @@
+{
+  lib,
+  cmake,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "thepowdertoy";
+  version = "0-unstable-2024-10-01";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "ThePowderToy";
+    rev = "5d9c749780063b87bd62ddb025dee4241f196f26";
+    hash = "sha256-BYeQ2WZgyvjDH5+akrVP5TlLq6Go3NKXB7zeR9oaaJ8=";
+  };
+
+  extraNativeBuildInputs = [ cmake ];
+  makefile = "Makefile";
+  postBuild = "cd src";
+
+  meta = {
+    description = "Port of The Powder Toy to libretro";
+    homepage = "https://github.com/libretro/ThePowderToy";
+    license = lib.licenses.gpl3Only;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/tic80.nix b/pkgs/applications/emulators/retroarch/cores/tic80.nix
new file mode 100644
index 000000000000..8799649b6653
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/tic80.nix
@@ -0,0 +1,41 @@
+{
+  lib,
+  cmake,
+  fetchFromGitHub,
+  mkLibretroCore,
+  pkg-config,
+}:
+mkLibretroCore {
+  core = "tic80";
+  version = "0-unstable-2024-05-13";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "tic-80";
+    rev = "6412f72d0f4725c153ce3d245729b829e713542e";
+    hash = "sha256-RFp8sTSRwD+cgW3EYk3nBeY+zVKgZVQI5mjtfe2a64Q=";
+    fetchSubmodules = true;
+  };
+
+  extraNativeBuildInputs = [
+    cmake
+    pkg-config
+  ];
+  makefile = "Makefile";
+  cmakeFlags = [
+    "-DBUILD_LIBRETRO=ON"
+    "-DBUILD_DEMO_CARTS=OFF"
+    "-DBUILD_PRO=OFF"
+    "-DBUILD_PLAYER=OFF"
+    "-DBUILD_SDL=OFF"
+    "-DBUILD_SOKOL=OFF"
+  ];
+  preConfigure = "cd core";
+  postBuild = "cd lib";
+
+  meta = {
+    description = "Port of TIC-80 to libretro";
+    homepage = "https://github.com/libretro/tic-80";
+    license = lib.licenses.mit;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/twenty-fortyeight.nix b/pkgs/applications/emulators/retroarch/cores/twenty-fortyeight.nix
new file mode 100644
index 000000000000..5c9c39ac3a08
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/twenty-fortyeight.nix
@@ -0,0 +1,22 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "2048";
+  version = "0-unstable-2024-06-28";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "libretro-2048";
+    rev = "5474ed1ab880b3296c9860d0943d7de1970c79dd";
+    hash = "sha256-i6bbxsLpSicDDGYKAxTMCMioHHfvBzVokun3PNYgDsc=";
+  };
+
+  meta = {
+    description = "Port of 2048 puzzle game to libretro";
+    homepage = "https://github.com/libretro/libretro-2048";
+    license = lib.licenses.unlicense;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/vba-m.nix b/pkgs/applications/emulators/retroarch/cores/vba-m.nix
new file mode 100644
index 000000000000..04b25cbcedca
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/vba-m.nix
@@ -0,0 +1,25 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "vbam";
+  version = "0-unstable-2024-10-21";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "vbam-libretro";
+    rev = "379dd97301458a51fb69dd93ba21b64f81e01ef2";
+    hash = "sha256-UbXSHdKfa91MpcYityo+aILbI0DfkLqZh8YfGcRx/BI=";
+  };
+
+  makefile = "Makefile";
+  preBuild = "cd src/libretro";
+
+  meta = {
+    description = "VBA-M libretro port";
+    homepage = "https://github.com/libretro/vbam-libretro";
+    license = lib.licenses.gpl2Only;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/vba-next.nix b/pkgs/applications/emulators/retroarch/cores/vba-next.nix
new file mode 100644
index 000000000000..a0c9ee947e2d
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/vba-next.nix
@@ -0,0 +1,22 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "vba-next";
+  version = "0-unstable-2024-06-28";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "vba-next";
+    rev = "2c726f25da75a5600ef5791ce904befe06c4dddd";
+    hash = "sha256-Elb6cOm2oO+3fNUaTXLN4kyhftoJ/oWXD571mXApybs=";
+  };
+
+  meta = {
+    description = "VBA-M libretro port with modifications for speed";
+    homepage = "https://github.com/libretro/vba-next";
+    license = lib.licenses.gpl2Only;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/vecx.nix b/pkgs/applications/emulators/retroarch/cores/vecx.nix
new file mode 100644
index 000000000000..0b2871528486
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/vecx.nix
@@ -0,0 +1,29 @@
+{
+  lib,
+  fetchFromGitHub,
+  libGL,
+  libGLU,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "vecx";
+  version = "0-unstable-2024-06-28";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "libretro-vecx";
+    rev = "0e48a8903bd9cc359da3f7db783f83e22722c0cf";
+    hash = "sha256-lB8NSaxDbN2qljhI0M/HFDuN0D/wMhFUQXhfSdGHsHU=";
+  };
+
+  extraBuildInputs = [
+    libGL
+    libGLU
+  ];
+
+  meta = {
+    description = "VBA-M libretro port with modifications for speed";
+    homepage = "https://github.com/libretro/libretro-vecx";
+    license = lib.licenses.gpl3Only;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/virtualjaguar.nix b/pkgs/applications/emulators/retroarch/cores/virtualjaguar.nix
new file mode 100644
index 000000000000..60b3ac75dd67
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/virtualjaguar.nix
@@ -0,0 +1,24 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "virtualjaguar";
+  version = "0-unstable-2024-10-21";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "virtualjaguar-libretro";
+    rev = "48096c1f6f8b98cfff048a5cb4e6a86686631072";
+    hash = "sha256-DLBQQARHqupGGQS8YznDSSMuxQliyt5apGA4Ku2jlYo=";
+  };
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "Port of VirtualJaguar to libretro";
+    homepage = "https://github.com/libretro/virtualjaguar-libretro";
+    license = lib.licenses.gpl3Only;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/cores/yabause.nix b/pkgs/applications/emulators/retroarch/cores/yabause.nix
new file mode 100644
index 000000000000..a825ad01c7ce
--- /dev/null
+++ b/pkgs/applications/emulators/retroarch/cores/yabause.nix
@@ -0,0 +1,28 @@
+{
+  lib,
+  stdenv,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "yabause";
+  version = "0-unstable-2024-10-21";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "yabause";
+    rev = "c35712c5ed33e18d77097f2059a036e19d1d66f2";
+    hash = "sha256-4/gxWNPkGKBf4ti7ZF4GXgng6ZPyM9prrvK0S5tZ6V8=";
+  };
+
+  makefile = "Makefile";
+  # Disable SSE for non-x86. DYNAREC doesn't build on aarch64.
+  makeFlags = lib.optional (!stdenv.hostPlatform.isx86) "HAVE_SSE=0";
+  preBuild = "cd yabause/src/libretro";
+
+  meta = {
+    description = "Port of Yabause to libretro";
+    homepage = "https://github.com/libretro/yabause";
+    license = lib.licenses.gpl2Only;
+  };
+}
diff --git a/pkgs/applications/emulators/retroarch/hashes.json b/pkgs/applications/emulators/retroarch/hashes.json
deleted file mode 100644
index 85ad2aa9e010..000000000000
--- a/pkgs/applications/emulators/retroarch/hashes.json
+++ /dev/null
@@ -1,903 +0,0 @@
-{
-    "!comment": "Generated with update_cores.py script, do not edit!",
-    "2048": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "libretro-2048",
-            "rev": "5474ed1ab880b3296c9860d0943d7de1970c79dd",
-            "hash": "sha256-i6bbxsLpSicDDGYKAxTMCMioHHfvBzVokun3PNYgDsc="
-        },
-        "version": "unstable-2024-06-28"
-    },
-    "atari800": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "libretro-atari800",
-            "rev": "6a18cb23cc4a7cecabd9b16143d2d7332ae8d44b",
-            "hash": "sha256-+cZXHtaXnpU/zCwiDtjkyNMFGDahiHzqV2FoTCRnUWE="
-        },
-        "version": "unstable-2024-10-31"
-    },
-    "beetle-gba": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "beetle-gba-libretro",
-            "rev": "6cee80685f735ea6c2373db2622a1f1ee9f39d39",
-            "hash": "sha256-a3XgExXVCUFw3GLCUkEl6now2L8qVdNOaXvrDMcT1ZE="
-        },
-        "version": "unstable-2024-10-21"
-    },
-    "beetle-lynx": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "beetle-lynx-libretro",
-            "rev": "7fead71b49e0f08be5c4d4224fea73c6174763bf",
-            "hash": "sha256-fYBx/bjbhRXoVIGnEg4/oMVm705ivL1os+FfVQLRSyI="
-        },
-        "version": "unstable-2024-10-21"
-    },
-    "beetle-ngp": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "beetle-ngp-libretro",
-            "rev": "139fe34c8dfc5585d6ee1793a7902bca79d544de",
-            "hash": "sha256-ruWnCgMxfpPHTWQ7vgNUczmGRzNKKhoZTNlUcNgm4T8="
-        },
-        "version": "unstable-2024-10-21"
-    },
-    "beetle-pce": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "beetle-pce-libretro",
-            "rev": "af28fb0385d00e0292c4703b3aa7e72762b564d2",
-            "hash": "sha256-W+74RTIidSUdviihLy926OvlSdqMECvOLEEiWMtB50w="
-        },
-        "version": "unstable-2024-11-15"
-    },
-    "beetle-pce-fast": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "beetle-pce-fast-libretro",
-            "rev": "931586f0512663f625a6e981d3047a6620281ab5",
-            "hash": "sha256-9Nne4upiQNSAlTZsyXcLNIwN8MMKUO1ycahowYW1sWg="
-        },
-        "version": "unstable-2024-11-15"
-    },
-    "beetle-pcfx": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "beetle-pcfx-libretro",
-            "rev": "dd04cef9355286488a1d78ff18c4c848a1575540",
-            "hash": "sha256-oFBuriCbJWjgPH9RRAM/XUvkW0gKXnvs7lmBpJpWewo="
-        },
-        "version": "unstable-2024-10-21"
-    },
-    "beetle-psx": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "beetle-psx-libretro",
-            "rev": "1068cb8dbd6f312664ecf5901625cab4a6533204",
-            "hash": "sha256-ioAnpz6OkHWPaYE0uTEvnHV+vGzq02bQ4oUP8jW6/YA="
-        },
-        "version": "unstable-2024-11-15"
-    },
-    "beetle-saturn": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "beetle-saturn-libretro",
-            "rev": "0a78a9a5ab0088ba19f21e028dda9f4b4d7c9e48",
-            "hash": "sha256-WNQhtaYBg7JqPdxcD0cLRjr2pSda6Xmx/WWYzyu5u9c="
-        },
-        "version": "unstable-2024-10-21"
-    },
-    "beetle-supafaust": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "supafaust",
-            "rev": "e25f66765938d33f9ad5850e8d6cd597e55b7299",
-            "hash": "sha256-ZgOXHhEHt54J2B1q6uA8v6uOK53g7idJlgoC4guTGow="
-        },
-        "version": "unstable-2024-10-01"
-    },
-    "beetle-supergrafx": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "beetle-supergrafx-libretro",
-            "rev": "a776133c34ae8da5daf7d9ccb43e3e292e2b07b0",
-            "hash": "sha256-FemWW4EPQCwhrS7YEytf6fEeimdTTfzaDdyRNDIBQyk="
-        },
-        "version": "unstable-2024-11-15"
-    },
-    "beetle-vb": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "beetle-vb-libretro",
-            "rev": "8f837ebc077afdd6652efb2827fd8308a07113ca",
-            "hash": "sha256-eAnBubNhj78G4r8OHVqwFXGOSA9wEYI6ZwNyiwDW8W8="
-        },
-        "version": "unstable-2024-10-21"
-    },
-    "beetle-wswan": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "beetle-wswan-libretro",
-            "rev": "2aeb47d3a58bf0360c686f842d9bb5bd201306fe",
-            "hash": "sha256-LrF9p5tPtUamVLC41bJxcYDKvHmhVfwMieyIAdHaGmU="
-        },
-        "version": "unstable-2024-10-21"
-    },
-    "blastem": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "blastem",
-            "rev": "277e4a62668597d4f59cadda1cbafb844f981d45",
-            "hash": "sha256-EHvKElPw8V5Z6LnMaQXBCdM4niLIlF3aBm8dRbeYXHs="
-        },
-        "version": "unstable-2022-07-26"
-    },
-    "bluemsx": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "bluemsx-libretro",
-            "rev": "01ce142ccb85c302420cb962d1b6e6a68a6ce076",
-            "hash": "sha256-h3Zpv+h6CbM1pdSOXsjN0pFUjXLn5T/R5W55VZXpMVM="
-        },
-        "version": "unstable-2024-10-22"
-    },
-    "bsnes": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "bsnes-libretro",
-            "rev": "20c55eb6333a11395ba637df8583066483e58cb2",
-            "hash": "sha256-IP00xtxS3wwnQSmYltrX8GEHZX/65xnx2EsmQlE1VZM="
-        },
-        "version": "unstable-2024-09-06"
-    },
-    "bsnes-hd": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "DerKoun",
-            "repo": "bsnes-hd",
-            "rev": "0bb7b8645e22ea2476cabd58f32e987b14686601",
-            "hash": "sha256-YzWSZMn6v5hWIHnp6KmmpevCsf35Vi2BCcmFMnrFPH0="
-        },
-        "version": "unstable-2024-10-21"
-    },
-    "bsnes-mercury": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "bsnes-mercury",
-            "rev": "0f35d044bf2f2b879018a0500e676447e93a1db1",
-            "hash": "sha256-skVREKYITZn+gKKSZmwuBCWrG0jb/pifwIgat8VyQ8U="
-        },
-        "version": "unstable-2024-10-21"
-    },
-    "citra": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "citra",
-            "rev": "2d67658e85de4767c0eefeb2829d710401c5c802",
-            "hash": "sha256-u2XwAudFgI7j/k6Bq5fk874aI6KpZawlBoIs2+M+eZY=",
-            "fetchSubmodules": true
-        },
-        "version": "unstable-2024-01-24"
-    },
-    "desmume": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "desmume",
-            "rev": "7f05a8d447b00acd9e0798aee97b4f72eb505ef9",
-            "hash": "sha256-BttWMunVbfPOTGx+DV+3QyOwW+55tgXKVIn99DZhbBI="
-        },
-        "version": "unstable-2024-10-21"
-    },
-    "desmume2015": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "desmume2015",
-            "rev": "af397ff3d1f208c27f3922cc8f2b8e08884ba893",
-            "hash": "sha256-kEb+og4g7rJvCinBZKcb42geZO6W8ynGsTG9yqYgI+U="
-        },
-        "version": "unstable-2022-04-05"
-    },
-    "dolphin": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "dolphin",
-            "rev": "89a4df725d4eb24537728f7d655cddb1add25c18",
-            "hash": "sha256-f9O3//EuoCSPQC7GWmf0EzAEpjoKof30kIDBCDw0dbs="
-        },
-        "version": "unstable-2024-04-19"
-    },
-    "dosbox": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "dosbox-libretro",
-            "rev": "b7b24262c282c0caef2368c87323ff8c381b3102",
-            "hash": "sha256-PG2eElenlEpu0U/NIh53p0uLqewnEdaq6Aoak5E1P3I="
-        },
-        "version": "unstable-2022-07-18"
-    },
-    "dosbox-pure": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "schellingb",
-            "repo": "dosbox-pure",
-            "rev": "39dd77adff71cd2ae17d80a0e48fad8583ade8e4",
-            "hash": "sha256-ZC3JX4BG+FUR/lcEUupISz1s8Q0AdqkO4XVIPi1L5vg="
-        },
-        "version": "unstable-2024-11-16"
-    },
-    "easyrpg": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "EasyRPG",
-            "repo": "Player",
-            "rev": "f8e41f43b619413f95847536412b56f85307d378",
-            "hash": "sha256-nvWM4czTv/GxY9raomBEn7dmKBeLtSA9nvjMJxc3Q8s=",
-            "fetchSubmodules": true
-        },
-        "version": "unstable-2023-04-29"
-    },
-    "eightyone": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "81-libretro",
-            "rev": "ffc99f27f092addc9ddd34dd0e3a3d4d1c053cbf",
-            "hash": "sha256-3AIXk3LJHZHWIojMeo2BJHWYDHQ17WVbkwjFhXM14ZE="
-        },
-        "version": "unstable-2024-10-21"
-    },
-    "fbalpha2012": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "fbalpha2012",
-            "rev": "77167cea72e808384c136c8c163a6b4975ce7a84",
-            "hash": "sha256-giEV09dT/e82bmDlRkxpkW04JcsEZc/enIPecqYtg3c="
-        },
-        "version": "unstable-2024-10-21"
-    },
-    "fbneo": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "fbneo",
-            "rev": "d72f49f4a45dbfc5a855956d1a75ce2d0601c1c5",
-            "hash": "sha256-+T+HQo6IfY8+oE/mOg54Vn9NhasGYNCLXksFdSDT/xE="
-        },
-        "version": "unstable-2024-10-03"
-    },
-    "fceumm": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "libretro-fceumm",
-            "rev": "9f53af4e332476ba99d0c056668fbb35cfb527c3",
-            "hash": "sha256-sTzjIuEBTKt2rZfSadQa1pDLFclLL/vwjgkTMK1ZzPQ="
-        },
-        "version": "unstable-2024-10-16"
-    },
-    "flycast": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "flyinghead",
-            "repo": "flycast",
-            "rev": "d618abc3205fe185b26afe58eb5472b800ae0b42",
-            "hash": "sha256-hlYu1RXfzDHJh5nqBQkcwjrLtFV5AIxdBw5PZn0SUNg=",
-            "fetchSubmodules": true
-        },
-        "version": "unstable-2024-11-17"
-    },
-    "fmsx": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "fmsx-libretro",
-            "rev": "9eb5f25df5397212a3e3088ca1a64db0740bbe5f",
-            "hash": "sha256-Pac1tQvPxYETU+fYU17moBHGfjNtzZiOsOms1uFQAmE="
-        },
-        "version": "unstable-2024-10-21"
-    },
-    "freeintv": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "freeintv",
-            "rev": "beab9af119fc117833d2d866d8d4ea0857ec0236",
-            "hash": "sha256-+3hF7OZ2OD8K3OsvzJ3+Nn3DwC7PfD+Mr3Ku2/W/fDQ="
-        },
-        "version": "unstable-2024-10-21"
-    },
-    "fuse": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "fuse-libretro",
-            "rev": "99df66eac096400d4d6d8fae2215192b6f03277e",
-            "hash": "sha256-o8FbDxke2JCUlmDZEHxMBY4f/WyHm1J76R43w+LVJfM="
-        },
-        "version": "unstable-2024-11-18"
-    },
-    "gambatte": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "gambatte-libretro",
-            "rev": "3eeb65e9bcf4b2a7ca24c5cebdfa7e342177ef0f",
-            "hash": "sha256-tNGMR6GIyXen9+Ktg3IvYTcPidc+5Z8TpBQu1YgmqlY="
-        },
-        "version": "unstable-2024-10-04"
-    },
-    "genesis-plus-gx": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "Genesis-Plus-GX",
-            "rev": "7de0f0b6cde9bda1235b448aa607044b3f80ab3c",
-            "hash": "sha256-W06vSrGKbXMcXIouW9/fD93sBfwREqIL8HvB3kan0tM="
-        },
-        "version": "unstable-2024-09-18"
-    },
-    "gpsp": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "gpsp",
-            "rev": "36061caf8cc5e15c3c92fb772b6b8560c7c59ec7",
-            "hash": "sha256-o36OUdgm7p+rAMN6R2e2Lqi4oBLTyxziw7Lr20ERBg0="
-        },
-        "version": "unstable-2024-10-21"
-    },
-    "gw": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "gw-libretro",
-            "rev": "435e5cfd4bf6aea03a84259e9b8dba3daf3ff5bd",
-            "hash": "sha256-csaOqrZMSk9xZUlGAKgypV38q9XE7K6hLLdBC10g9Ao="
-        },
-        "version": "unstable-2024-10-21"
-    },
-    "handy": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "libretro-handy",
-            "rev": "4e9e072796e5552a9d57f6ab83b3f85f27b17fb6",
-            "hash": "sha256-ThzFEqLCX2JC06n6GZgkGzX5sFY5CxFDjkeekXRmbXY="
-        },
-        "version": "unstable-2024-10-21"
-    },
-    "hatari": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "hatari",
-            "rev": "7008194d3f951a157997f67a820578f56f7feee0",
-            "hash": "sha256-ZPzwUBaxs2ivE9n9cb5XB5mhixY9b6qIlq7OiVSLbqg="
-        },
-        "version": "unstable-2024-10-21"
-    },
-    "mame": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "mame",
-            "rev": "a67797ad2f7516906ed7acef87569c6f35ca8739",
-            "hash": "sha256-MF6MWQftHBYL1Uv3ZYKFqCH24nd1+M73rhUzkdftMzk=",
-            "fetchSubmodules": true
-        },
-        "version": "unstable-2024-11-01"
-    },
-    "mame2000": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "mame2000-libretro",
-            "rev": "2ec60f6e1078cf9ba173e80432cc28fd4eea200f",
-            "hash": "sha256-AYZj7bvO9oc7wmEBbj6DPRzpQFHl8diIcunSSpD4Vok="
-        },
-        "version": "unstable-2024-07-01"
-    },
-    "mame2003": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "mame2003-libretro",
-            "rev": "6d543115531fc96422b73c989a628600cacbea50",
-            "hash": "sha256-jFzFQVB0uiSRa82sq1fiMEXyzzDJqRANNgq5hj/ZAl4="
-        },
-        "version": "unstable-2024-11-10"
-    },
-    "mame2003-plus": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "mame2003-plus-libretro",
-            "rev": "b00ea1c9574126d75ae7b80c3b41e1186421fc1d",
-            "hash": "sha256-Zq4P5UsZh3p9/zasfTC+pzWiLAo7T2qAgZw4bJ4ADdM="
-        },
-        "version": "unstable-2024-11-19"
-    },
-    "mame2010": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "mame2010-libretro",
-            "rev": "c5b413b71e0a290c57fc351562cd47ba75bac105",
-            "hash": "sha256-p+uEhxjr/07YJxInhW7oJDr8KurD36JxnSfJo17FOxM="
-        },
-        "version": "unstable-2024-10-23"
-    },
-    "mame2015": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "mame2015-libretro",
-            "rev": "316cd06349f2b34b4719f04f7c0d07569a74c764",
-            "hash": "sha256-CBN04Jf26SIk8mKWlui5spQGokBvgFUCvFiC8NoBGw0="
-        },
-        "version": "unstable-2023-11-01"
-    },
-    "mame2016": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "mame2016-libretro",
-            "rev": "01058613a0109424c4e7211e49ed83ac950d3993",
-            "hash": "sha256-IsM7f/zlzvomVOYlinJVqZllUhDfy4NNTeTPtNmdVak="
-        },
-        "version": "unstable-2022-04-06"
-    },
-    "melonds": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "melonds",
-            "rev": "7a3c11ff970cd36ca806961fae6db94b30dd5401",
-            "hash": "sha256-YGkRdth7qdATcZpJkBd5MGOJFG1AbeJhAnyir+ssZYA="
-        },
-        "version": "unstable-2024-10-21"
-    },
-    "mesen": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "mesen",
-            "rev": "791c5e8153ee6e29691d45b5df2cf1151ff416f9",
-            "hash": "sha256-PEEGJsyT+D/JwBxH2H9OY2MwaGt1i+1kmDZUT6zROic="
-        },
-        "version": "unstable-2024-10-21"
-    },
-    "mesen-s": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "mesen-s",
-            "rev": "d4fca31a6004041d99b02199688f84c009c55967",
-            "hash": "sha256-mGGTLBRJCsNJg57LWSFndIv/LLzEmVRnv6gNbllkV/Y="
-        },
-        "version": "unstable-2024-10-21"
-    },
-    "meteor": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "meteor-libretro",
-            "rev": "e533d300d0561564451bde55a2b73119c768453c",
-            "hash": "sha256-zMkgzUz2rk0SD5ojY4AqaDlNM4k4QxuUxVBRBcn6TqQ="
-        },
-        "version": "unstable-2020-12-28"
-    },
-    "mgba": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "mgba",
-            "rev": "747362c02d2e71ee7c363e8dcb240925be8af906",
-            "hash": "sha256-dBhdS6C1H02iwdYDVvJmkPWob81vpmQJdHUHJFAq2vo="
-        },
-        "version": "unstable-2024-11-12"
-    },
-    "mrboom": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "Javanaise",
-            "repo": "mrboom-libretro",
-            "rev": "22765ce7176d236d846f504318a51c448d2b469b",
-            "hash": "sha256-hzdc4PM/EARNEtpeATo4VohXtkeBra6rCz3tdIgBfVw=",
-            "fetchSubmodules": true
-        },
-        "version": "unstable-2024-07-01"
-    },
-    "mupen64plus": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "mupen64plus-libretro-nx",
-            "rev": "4249e39b2c200e5f0895385f76d99928785f2bea",
-            "hash": "sha256-nII/PMYo2xLznmAcKs6jDWGRS1DC3tiDeT6KJKRnaCI="
-        },
-        "version": "unstable-2024-10-29"
-    },
-    "neocd": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "neocd_libretro",
-            "rev": "5eca2c8fd567b5261251c65ecafa8cf5b179d1d2",
-            "hash": "sha256-72tmPCb7AXsamaQsMAPiYpgDR8DER2GTz4hcbN8wy7g="
-        },
-        "version": "unstable-2024-10-21"
-    },
-    "nestopia": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "nestopia",
-            "rev": "b932740e8abbe2cda80d06b083fdd8115af1c5d5",
-            "hash": "sha256-lIWk3V93vTKZM/jvfLkA06c7DDSEQtLmqRzJUi0TK/4="
-        },
-        "version": "unstable-2024-10-17"
-    },
-    "np2kai": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "AZO234",
-            "repo": "NP2kai",
-            "rev": "4b109eaac4f79b04065ff5025319fce51537e04d",
-            "hash": "sha256-tRFvK8d5Y/umy/b1BKN85ZSaDWyK95hII4RVng7A5uU=",
-            "fetchSubmodules": true
-        },
-        "version": "unstable-2024-11-03"
-    },
-    "nxengine": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "nxengine-libretro",
-            "rev": "9adc032a5f6aa913d71d22042bb72cb11cf0f4a2",
-            "hash": "sha256-8XjZp18lQU3xFNDjIuNsSHn7Mhba8Lze/IeRsy8/U1U="
-        },
-        "version": "unstable-2024-10-21"
-    },
-    "o2em": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "libretro-o2em",
-            "rev": "c8f458d035392963823fbb50db0cec0033d9315f",
-            "hash": "sha256-riqMXm+3BG4Gz0wrmVFxtVhuMRtZHZqCViAupp/Q42U="
-        },
-        "version": "unstable-2024-06-28"
-    },
-    "opera": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "opera-libretro",
-            "rev": "67a29e60a4d194b675c9272b21b61eaa022f3ba3",
-            "hash": "sha256-8896EWNbzVyr3MS1jtWD3pLur7ZvAhhJmrwkW3ayzkU="
-        },
-        "version": "unstable-2024-10-17"
-    },
-    "parallel-n64": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "parallel-n64",
-            "rev": "e372c5e327dcd649e9d840ffc3d88480b6866eda",
-            "hash": "sha256-q4octB5XDdl4PtLYVZfBgydVBNaOwzu9dPBY+Y68lVo="
-        },
-        "version": "unstable-2024-10-21"
-    },
-    "pcsx2": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "lrps2",
-            "rev": "f3c8743d6a42fe429f703b476fecfdb5655a98a9",
-            "hash": "sha256-0piCNWX7QbZ58KyTlWp4h1qLxXpi1z6ML8sBHMTvCY4="
-        },
-        "version": "unstable-2023-01-30"
-    },
-    "pcsx_rearmed": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "pcsx_rearmed",
-            "rev": "e3d7ea45c75f2752e351d5c5b54cf7e79e66d26e",
-            "hash": "sha256-dJqomyUHYQ+vpyu7/w2S/NidgYbHiGBWjebFQAXjzI0="
-        },
-        "version": "unstable-2024-11-17"
-    },
-    "picodrive": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "picodrive",
-            "rev": "0daf92b57fba1fdbc124651573e88373eef28aa5",
-            "hash": "sha256-rvgcGNpHhjHpg5q6qiu08lBn+Zjx87E5/Q98gPoffhE=",
-            "fetchSubmodules": true
-        },
-        "version": "unstable-2024-10-19"
-    },
-    "play": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "jpd002",
-            "repo": "Play-",
-            "rev": "c3cba5418b4e5618befd9c2790498cf3cf88372a",
-            "hash": "sha256-xO2Pgl1E0JFEsthTmG+Ka+NqOTWG/JeeAIa6wBWXJyc=",
-            "fetchSubmodules": true
-        },
-        "version": "unstable-2024-11-14"
-    },
-    "ppsspp": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "hrydgard",
-            "repo": "ppsspp",
-            "rev": "2402eea4b16908ad59079bcf3fab06ba63531a3c",
-            "hash": "sha256-bpeiZdcXkGWLFZOsxTGuVmo4xAiUb9v5Wf6pWkt5JV0=",
-            "fetchSubmodules": true
-        },
-        "version": "unstable-2024-11-15"
-    },
-    "prboom": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "libretro-prboom",
-            "rev": "d25ccfb9739069824d8fff99e3ae78a58a09df01",
-            "hash": "sha256-IaMreS2MSkFdZ3Jff2FOZBvKIIa4KIkp41LIg3PLl44="
-        },
-        "version": "unstable-2024-10-21"
-    },
-    "prosystem": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "prosystem-libretro",
-            "rev": "acae250da8d98b8b9707cd499e2a0bf6d8500652",
-            "hash": "sha256-AGF3K3meZEEsnzHmMTCsFXBGNvWVELH8a8qET07kP0o="
-        },
-        "version": "unstable-2024-10-21"
-    },
-    "puae": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "libretro-uae",
-            "rev": "c60e42ef9ad474518d4be859b7c1da2c0c7e1d6f",
-            "hash": "sha256-WCkz7BUgYaI+yRhPmNuOKGJC/GxV+n2aeJVn8vhx0Ng="
-        },
-        "version": "unstable-2024-10-19"
-    },
-    "quicknes": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "QuickNES_Core",
-            "rev": "dbf19f73e3eb9701d1c7f5898f57c097e05c9fbd",
-            "hash": "sha256-oFQUMp1imc8JCsQYCy1BtIUmTC+u0VcoYHpWzUpKNb4="
-        },
-        "version": "unstable-2024-10-21"
-    },
-    "same_cdi": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "same_cdi",
-            "rev": "54cf493c2dee4c46666059c452f8aaaa0bd7c8e0",
-            "hash": "sha256-/+4coMzj/o82Q04Z65DQiPaykK6N56W6PRQLtyJOd8E="
-        },
-        "version": "unstable-2023-02-28"
-    },
-    "sameboy": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "sameboy",
-            "rev": "51433012a871a44555492273fd22f29867d12655",
-            "hash": "sha256-vPT2uRGbXmJ62yig/yk485/TxEEKHJeWdNrM2c0IjKw="
-        },
-        "version": "unstable-2024-06-28"
-    },
-    "scummvm": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro-mirrors",
-            "repo": "scummvm",
-            "rev": "2fb2e4c551c9c1510c56f6e890ee0300b7b3fca3",
-            "hash": "sha256-wrlFqu+ONbYH4xMFDByOgySobGrkhVc7kYWI4JzA4ew="
-        },
-        "version": "unstable-2022-04-06"
-    },
-    "smsplus-gx": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "smsplus-gx",
-            "rev": "c642bbd0680b5959180a420036108893d0aec961",
-            "hash": "sha256-SHBrwzLyVZ4Tp/kVCnr4xj2B3pmdg+JUmZUM7hYao64="
-        },
-        "version": "unstable-2024-10-21"
-    },
-    "snes9x": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "snes9xgit",
-            "repo": "snes9x",
-            "rev": "fd05ca7df5259a2cd0aa9204f331e0b05126c376",
-            "hash": "sha256-o/Rb1XQ7QoI0hKROMFZ9igyH8NN3bMryvyU4oNUqtRA="
-        },
-        "version": "unstable-2024-10-28"
-    },
-    "snes9x2002": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "snes9x2002",
-            "rev": "a0709ec7dcd6de2fbebb43106bd757b649e3b7cf",
-            "hash": "sha256-rrMPhXIsQ48fVvjgZgC3xeqm9k9kwe43oZNzs2d/h1Q="
-        },
-        "version": "unstable-2024-10-21"
-    },
-    "snes9x2005": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "snes9x2005",
-            "rev": "74d871db9b4dba6dbe6c5ecebc88cbf255be5349",
-            "hash": "sha256-YlRMjSEo9sdLVRzWGSJlnBeqg6wUhZi8l3ffzUaKQIQ="
-        },
-        "version": "unstable-2024-10-21"
-    },
-    "snes9x2010": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "snes9x2010",
-            "rev": "f9ae8fd28b13070a945a829ccf41cbf90a21d0f7",
-            "hash": "sha256-nsExAYnzDenPvXzeN60jGykRTrCGMi/mRPV+vgS8ZtE="
-        },
-        "version": "unstable-2024-11-18"
-    },
-    "stella": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "stella-emu",
-            "repo": "stella",
-            "rev": "0e2ce2771c7d0c9b2dd5c06e3a4746738d3c9e47",
-            "hash": "sha256-axt5wvH7WENh1ALPYc+f5XpCv2xPm5jYx26zMhLEt3E="
-        },
-        "version": "unstable-2024-11-17"
-    },
-    "stella2014": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "stella2014-libretro",
-            "rev": "3cc89f0d316d6c924a5e3f4011d17421df58e615",
-            "hash": "sha256-2gnFWau7F45SdzoqDUlqYXfXVE1EUPozHZv7BhyRRIA="
-        },
-        "version": "unstable-2024-10-21"
-    },
-    "swanstation": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "swanstation",
-            "rev": "37cd87e14ca09ac1b558e5b2c7db4ad256865bbb",
-            "hash": "sha256-dNIxlTPoY4S6VMtTN22ti3DE4aU/8XN/XhAo3DMNR/E="
-        },
-        "version": "unstable-2024-07-24"
-    },
-    "tgbdual": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "tgbdual-libretro",
-            "rev": "8d305769eebd67266c284558f9d3a30498894d3d",
-            "hash": "sha256-3mlnTgp43qC3yifpr6pvtC4vslddcf6mephKA183vEk="
-        },
-        "version": "unstable-2024-10-21"
-    },
-    "thepowdertoy": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "ThePowderToy",
-            "rev": "5d9c749780063b87bd62ddb025dee4241f196f26",
-            "hash": "sha256-BYeQ2WZgyvjDH5+akrVP5TlLq6Go3NKXB7zeR9oaaJ8="
-        },
-        "version": "unstable-2024-10-01"
-    },
-    "tic80": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "tic-80",
-            "rev": "6412f72d0f4725c153ce3d245729b829e713542e",
-            "hash": "sha256-RFp8sTSRwD+cgW3EYk3nBeY+zVKgZVQI5mjtfe2a64Q=",
-            "fetchSubmodules": true
-        },
-        "version": "unstable-2024-05-13"
-    },
-    "vba-m": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "vbam-libretro",
-            "rev": "379dd97301458a51fb69dd93ba21b64f81e01ef2",
-            "hash": "sha256-UbXSHdKfa91MpcYityo+aILbI0DfkLqZh8YfGcRx/BI="
-        },
-        "version": "unstable-2024-10-21"
-    },
-    "vba-next": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "vba-next",
-            "rev": "2c726f25da75a5600ef5791ce904befe06c4dddd",
-            "hash": "sha256-Elb6cOm2oO+3fNUaTXLN4kyhftoJ/oWXD571mXApybs="
-        },
-        "version": "unstable-2024-06-28"
-    },
-    "vecx": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "libretro-vecx",
-            "rev": "0e48a8903bd9cc359da3f7db783f83e22722c0cf",
-            "hash": "sha256-lB8NSaxDbN2qljhI0M/HFDuN0D/wMhFUQXhfSdGHsHU="
-        },
-        "version": "unstable-2024-06-28"
-    },
-    "virtualjaguar": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "virtualjaguar-libretro",
-            "rev": "48096c1f6f8b98cfff048a5cb4e6a86686631072",
-            "hash": "sha256-DLBQQARHqupGGQS8YznDSSMuxQliyt5apGA4Ku2jlYo="
-        },
-        "version": "unstable-2024-10-21"
-    },
-    "yabause": {
-        "fetcher": "fetchFromGitHub",
-        "src": {
-            "owner": "libretro",
-            "repo": "yabause",
-            "rev": "c35712c5ed33e18d77097f2059a036e19d1d66f2",
-            "hash": "sha256-4/gxWNPkGKBf4ti7ZF4GXgng6ZPyM9prrvK0S5tZ6V8="
-        },
-        "version": "unstable-2024-10-21"
-    }
-}
diff --git a/pkgs/applications/emulators/retroarch/mkLibretroCore.nix b/pkgs/applications/emulators/retroarch/mkLibretroCore.nix
index bf933bf70159..42124cb23609 100644
--- a/pkgs/applications/emulators/retroarch/mkLibretroCore.nix
+++ b/pkgs/applications/emulators/retroarch/mkLibretroCore.nix
@@ -1,19 +1,22 @@
-{ lib
-, stdenv
-, core
-, repo
-, makeWrapper
-, retroarch
-, zlib
-, makefile ? "Makefile.libretro"
-, extraBuildInputs ? [ ]
-, extraNativeBuildInputs ? [ ]
-  # Location of resulting RetroArch core on $out
-, libretroCore ? "/lib/retroarch/cores"
-  # The core filename is derivated from the core name
-  # Setting `normalizeCore` to `true` will convert `-` to `_` on the core filename
-, normalizeCore ? true
-, ...
+{
+  # Deps
+  lib,
+  stdenv,
+  makeWrapper,
+  retroarchBare,
+  unstableGitUpdater,
+  zlib,
+  # Params
+  core,
+  makefile ? "Makefile.libretro",
+  extraBuildInputs ? [ ],
+  extraNativeBuildInputs ? [ ],
+  ## Location of resulting RetroArch core on $out
+  libretroCore ? "/lib/retroarch/cores",
+  ## The core filename is derivated from the core name
+  ## Setting `normalizeCore` to `true` will convert `-` to `_` on the core filename
+  normalizeCore ? true,
+  ...
 }@args:
 
 let
@@ -24,62 +27,74 @@ let
   extraArgs = builtins.removeAttrs args [
     "lib"
     "stdenv"
-    "core"
     "makeWrapper"
-    "retroarch"
+    "retroarchBare"
+    "unstableGitUpdater"
     "zlib"
+
+    "core"
     "makefile"
     "extraBuildInputs"
     "extraNativeBuildInputs"
     "libretroCore"
     "normalizeCore"
-    "makeFlags"
-    "meta"
   ];
 in
-stdenv.mkDerivation ({
-  pname = "libretro-${core}";
+stdenv.mkDerivation (
+  {
+    pname = "libretro-${core}";
 
-  buildInputs = [ zlib ] ++ extraBuildInputs;
-  nativeBuildInputs = [ makeWrapper ] ++ extraNativeBuildInputs;
+    buildInputs = [ zlib ] ++ extraBuildInputs;
+    nativeBuildInputs = [ makeWrapper ] ++ extraNativeBuildInputs;
 
-  inherit makefile;
+    inherit makefile;
 
-  makeFlags = [
-    "platform=${{
-      linux = "unix";
-      darwin = "osx";
-      windows = "win";
-    }.${stdenv.hostPlatform.parsed.kernel.name} or stdenv.hostPlatform.parsed.kernel.name}"
-    "ARCH=${{
-      armv7l = "arm";
-      armv6l = "arm";
-      aarch64 = "arm64";
-      i686 = "x86";
-    }.${stdenv.hostPlatform.parsed.cpu.name} or stdenv.hostPlatform.parsed.cpu.name}"
-  ] ++ (args.makeFlags or [ ]);
+    makeFlags = [
+      "platform=${
+        {
+          linux = "unix";
+          darwin = "osx";
+          windows = "win";
+        }
+        .${stdenv.hostPlatform.parsed.kernel.name} or stdenv.hostPlatform.parsed.kernel.name
+      }"
+      "ARCH=${
+        {
+          armv7l = "arm";
+          armv6l = "arm";
+          aarch64 = "arm64";
+          i686 = "x86";
+        }
+        .${stdenv.hostPlatform.parsed.cpu.name} or stdenv.hostPlatform.parsed.cpu.name
+      }"
+    ] ++ (args.makeFlags or [ ]);
 
-  installPhase = ''
-    runHook preInstall
+    installPhase = ''
+      runHook preInstall
 
-    install -Dt ${coreDir} ${coreFilename}
-    makeWrapper ${retroarch}/bin/retroarch $out/bin/${mainProgram} \
-      --add-flags "-L ${coreDir}/${coreFilename}"
+      install -Dt ${coreDir} ${coreFilename}
+      makeWrapper ${retroarchBare}/bin/retroarch $out/bin/${mainProgram} \
+        --add-flags "-L ${coreDir}/${coreFilename}"
 
-    runHook postInstall
-  '';
+      runHook postInstall
+    '';
 
-  enableParallelBuilding = true;
+    enableParallelBuilding = true;
 
-  passthru = {
-    inherit core libretroCore;
-    updateScript = [ ./update_cores.py repo ];
-  };
+    passthru = {
+      inherit core libretroCore;
+      updateScript = unstableGitUpdater { };
+    } // (args.passthru or { });
 
-  meta = with lib; {
-    inherit mainProgram;
-    inherit (retroarch.meta) platforms;
-    homepage = "https://www.libretro.com/";
-    maintainers = with maintainers; teams.libretro.members ++ [ hrdinka ];
-  } // (args.meta or { });
-} // extraArgs)
+    meta =
+      with lib;
+      {
+        inherit mainProgram;
+        inherit (retroarchBare.meta) platforms;
+        homepage = "https://www.libretro.com/";
+        maintainers = with maintainers; teams.libretro.members;
+      }
+      // (args.meta or { });
+  }
+  // extraArgs
+)
diff --git a/pkgs/applications/emulators/retroarch/update_cores.py b/pkgs/applications/emulators/retroarch/update_cores.py
deleted file mode 100755
index 4e15315ce726..000000000000
--- a/pkgs/applications/emulators/retroarch/update_cores.py
+++ /dev/null
@@ -1,233 +0,0 @@
-#!/usr/bin/env nix-shell
-#!nix-shell -I nixpkgs=./ -i python3 -p "python3.withPackages (ps: with ps; [ ])" -p git -p nix-prefetch-github -p nix-prefetch-git -p nix-prefetch-scripts
-
-import json
-import os
-import subprocess
-import sys
-from concurrent.futures import ThreadPoolExecutor
-from pathlib import Path
-
-SCRIPT_PATH = Path(__file__).absolute().parent
-HASHES_PATH = SCRIPT_PATH / "hashes.json"
-GET_REPO_THREADS = int(os.environ.get("GET_REPO_THREADS", 8))
-# To add a new core, add it to the dictionary below. You need to set at least
-# `repo`, that is the repository name if the owner of the repository is
-# `libretro` itself, otherwise also set `owner`.
-# You may set `deep_clone`, `fetch_submodules` or `leave_dot_git` options to
-# `True` and they're similar to `fetchgit` options. Also if for some reason you
-# need to pin a specific revision, set `rev` to a commit.
-# There is also a `fetcher` option that for now only supports `fetchFromGitHub`
-# (see `get_repo_hash()`), but it may be extended in the future if there is a
-# need to support fetchers from other source hubs.
-# To generate the hash file for your new core, you can run
-# `<nixpkgs>/pkgs/applications/emulators/retroarch/update_cores.py <core>`. Do
-# not forget to add your core to `cores.nix` file with the proper overrides so
-# the core can be build.
-CORES = {
-    "2048": {"repo": "libretro-2048"},
-    "atari800": {"repo": "libretro-atari800"},
-    "beetle-gba": {"repo": "beetle-gba-libretro"},
-    "beetle-lynx": {"repo": "beetle-lynx-libretro"},
-    "beetle-ngp": {"repo": "beetle-ngp-libretro"},
-    "beetle-pce": {"repo": "beetle-pce-libretro"},
-    "beetle-pce-fast": {"repo": "beetle-pce-fast-libretro"},
-    "beetle-pcfx": {"repo": "beetle-pcfx-libretro"},
-    "beetle-psx": {"repo": "beetle-psx-libretro"},
-    "beetle-saturn": {"repo": "beetle-saturn-libretro"},
-    "beetle-supafaust": {"repo": "supafaust"},
-    "beetle-supergrafx": {"repo": "beetle-supergrafx-libretro"},
-    "beetle-vb": {"repo": "beetle-vb-libretro"},
-    "beetle-wswan": {"repo": "beetle-wswan-libretro"},
-    "blastem": {"repo": "blastem"},
-    "bluemsx": {"repo": "bluemsx-libretro"},
-    "bsnes": {"repo": "bsnes-libretro"},
-    "bsnes-hd": {"repo": "bsnes-hd", "owner": "DerKoun"},
-    "bsnes-mercury": {"repo": "bsnes-mercury"},
-    "citra": {"repo": "citra", "fetch_submodules": True},
-    "desmume": {"repo": "desmume"},
-    "desmume2015": {"repo": "desmume2015"},
-    "dolphin": {"repo": "dolphin"},
-    "dosbox": {"repo": "dosbox-libretro"},
-    "dosbox-pure": {"repo": "dosbox-pure", "owner": "schellingb"},
-    # The EasyRPG core is pinned to 0.8 since it depends on version 0.8 of liblcf, which
-    # was released in April 2023.
-    # Update the version when a compatible liblcf is available.
-    # See pkgs/games/easyrpg-player/default.nix for details.
-    "easyrpg": {"repo": "Player", "owner": "EasyRPG", "fetch_submodules": True, "rev": "0.8"},
-    "eightyone": {"repo": "81-libretro"},
-    "fbalpha2012": {"repo": "fbalpha2012"},
-    "fbneo": {"repo": "fbneo"},
-    "fceumm": {"repo": "libretro-fceumm"},
-    "flycast": {"repo": "flycast", "owner": "flyinghead", "fetch_submodules": True},
-    "fmsx": {"repo": "fmsx-libretro"},
-    "freeintv": {"repo": "freeintv"},
-    "fuse": {"repo": "fuse-libretro"},
-    "gambatte": {"repo": "gambatte-libretro"},
-    "genesis-plus-gx": {"repo": "Genesis-Plus-GX"},
-    "gpsp": {"repo": "gpsp"},
-    "gw": {"repo": "gw-libretro"},
-    "handy": {"repo": "libretro-handy"},
-    "hatari": {"repo": "hatari"},
-    # Setting fetch_submodules=True since libretro/mame constantly gives
-    # different hashes for its tarballs, see:
-    # - https://github.com/NixOS/nixpkgs/issues/259488#issuecomment-1751768379
-    # - https://github.com/NixOS/nixpkgs/pull/303494
-    "mame": {"repo": "mame", "fetch_submodules": True},
-    "mame2000": {"repo": "mame2000-libretro"},
-    "mame2003": {"repo": "mame2003-libretro"},
-    "mame2003-plus": {"repo": "mame2003-plus-libretro"},
-    "mame2010": {"repo": "mame2010-libretro"},
-    "mame2015": {"repo": "mame2015-libretro"},
-    "mame2016": {"repo": "mame2016-libretro"},
-    "melonds": {"repo": "melonds"},
-    "mesen": {"repo": "mesen"},
-    "mesen-s": {"repo": "mesen-s"},
-    "meteor": {"repo": "meteor-libretro"},
-    "mrboom": {"repo": "mrboom-libretro", "owner": "Javanaise", "fetch_submodules": True},
-    "mgba": {"repo": "mgba"},
-    "mupen64plus": {"repo": "mupen64plus-libretro-nx"},
-    "neocd": {"repo": "neocd_libretro"},
-    "nestopia": {"repo": "nestopia"},
-    "nxengine": {"repo": "nxengine-libretro"},
-    "np2kai": {"repo": "NP2kai", "owner": "AZO234", "fetch_submodules": True},
-    "o2em": {"repo": "libretro-o2em"},
-    "opera": {"repo": "opera-libretro"},
-    "parallel-n64": {"repo": "parallel-n64"},
-    # libretro/lrps2 is a hard-fork of pcsx2 with simplified code to target
-    # only libretro, while libretro/pcsx2 is supposedly closer to upstream but
-    # it is a WIP.
-    # TODO: switch to libretro/pcsx2 when upstream switches to it.
-    "pcsx2": {"repo": "lrps2"},
-    "pcsx_rearmed": {"repo": "pcsx_rearmed"},
-    "picodrive": {"repo": "picodrive", "fetch_submodules": True},
-    "play": {"repo": "Play-", "owner": "jpd002", "fetch_submodules": True},
-    "ppsspp": {"repo": "ppsspp", "owner": "hrydgard", "fetch_submodules": True},
-    "prboom": {"repo": "libretro-prboom"},
-    "prosystem": {"repo": "prosystem-libretro"},
-    "puae": {"repo": "libretro-uae"},
-    "quicknes": {"repo": "QuickNES_Core"},
-    "sameboy": {"repo": "sameboy"},
-    "same_cdi": {"repo": "same_cdi"},
-    # This is the old source code before they upstreamed the source code,
-    # so now the libretro related code lives in the scummvm/scummvm repository.
-    # However this broke the old way we were doing builds, so for now point
-    # to a mirror with the old source code until this issue is fixed.
-    # TODO: switch to libretro/scummvm since this is more up-to-date
-    "scummvm": {"repo": "scummvm", "owner": "libretro-mirrors"},
-    "smsplus-gx": {"repo": "smsplus-gx"},
-    "snes9x": {"repo": "snes9x", "owner": "snes9xgit"},
-    "snes9x2002": {"repo": "snes9x2002"},
-    "snes9x2005": {"repo": "snes9x2005"},
-    "snes9x2010": {"repo": "snes9x2010"},
-    "stella": {"repo": "stella", "owner": "stella-emu"},
-    "stella2014": {"repo": "stella2014-libretro"},
-    "swanstation": {"repo": "swanstation"},
-    "tgbdual": {"repo": "tgbdual-libretro"},
-    "thepowdertoy": {"repo": "ThePowderToy"},
-    "tic80": {"repo": "tic-80", "fetch_submodules": True},
-    "vba-m": {"repo": "vbam-libretro"},
-    "vba-next": {"repo": "vba-next"},
-    "vecx": {"repo": "libretro-vecx"},
-    "virtualjaguar": {"repo": "virtualjaguar-libretro"},
-    "yabause": {"repo": "yabause"},
-}
-
-
-def info(*msg):
-    print(*msg, file=sys.stderr)
-
-
-def get_repo_hash_fetchFromGitHub(
-    repo,
-    owner="libretro",
-    deep_clone=False,
-    fetch_submodules=False,
-    leave_dot_git=False,
-    rev=None,
-):
-    extra_args = []
-    if deep_clone:
-        extra_args.append("--deep-clone")
-    else:
-        extra_args.append("--no-deep-clone")
-    if fetch_submodules:
-        extra_args.append("--fetch-submodules")
-    else:
-        extra_args.append("--no-fetch-submodules")
-    if leave_dot_git:
-        extra_args.append("--leave-dot-git")
-    else:
-        extra_args.append("--no-leave-dot-git")
-    if rev:
-        extra_args.append("--rev")
-        extra_args.append(rev)
-    try:
-        result = subprocess.run(
-            ["nix-prefetch-github", owner, repo, "--meta", *extra_args],
-            check=True,
-            capture_output=True,
-            text=True,
-        )
-    except subprocess.CalledProcessError as ex:
-        info(f"Error while updating {owner}/{repo}:", ex.stderr)
-        raise ex
-
-    j = json.loads(result.stdout)
-    return {
-        "fetcher": "fetchFromGitHub",
-        # Remove False values
-        "src": {k: v for k, v in j["src"].items() if v},
-        "version": f"unstable-{j['meta']['commitDate']}",
-    }
-
-
-def get_repo_hash(fetcher="fetchFromGitHub", **kwargs):
-    if fetcher == "fetchFromGitHub":
-        return get_repo_hash_fetchFromGitHub(**kwargs)
-    else:
-        raise ValueError(f"Unsupported fetcher: {fetcher}")
-
-
-def get_repo_hashes(cores={}):
-    def get_repo_hash_from_core_def(core_def):
-        core, repo = core_def
-        info(f"Getting repo hash for '{core}'...")
-        result = core, get_repo_hash(**repo)
-        info(f"Got repo hash for '{core}'!")
-        return result
-
-    with open(HASHES_PATH) as f:
-        repo_hashes = json.loads(f.read())
-
-    info(f"Running with {GET_REPO_THREADS} threads!")
-    with ThreadPoolExecutor(max_workers=GET_REPO_THREADS) as executor:
-        new_repo_hashes = executor.map(get_repo_hash_from_core_def, cores.items())
-
-    for core, repo in new_repo_hashes:
-        repo_hashes[core] = repo
-
-    return repo_hashes
-
-
-def main():
-    # If you don't want to update all cores, pass the name of the cores you
-    # want to update on the command line. E.g.:
-    # $ ./update.py citra snes9x
-    if len(sys.argv) > 1:
-        cores_to_update = sys.argv[1:]
-    else:
-        cores_to_update = CORES.keys()
-
-    cores = {core: repo for core, repo in CORES.items() if core in cores_to_update}
-    repo_hashes = get_repo_hashes(cores)
-    repo_hashes["!comment"] = "Generated with update_cores.py script, do not edit!"
-    info(f"Generating '{HASHES_PATH}'...")
-    with open(HASHES_PATH, "w") as f:
-        f.write(json.dumps(dict(sorted(repo_hashes.items())), indent=4))
-        f.write("\n")
-    info("Finished!")
-
-
-if __name__ == "__main__":
-    main()
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 1624737d901d..69c562b3d52e 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -1480,12 +1480,7 @@ with pkgs;
 
   retroarch-joypad-autoconfig = callPackage ../applications/emulators/retroarch/retroarch-joypad-autoconfig.nix { };
 
-  libretranslate = with python3.pkgs; toPythonApplication libretranslate;
-
-  libretro = recurseIntoAttrs
-    (callPackage ../applications/emulators/retroarch/cores.nix {
-      retroarch = retroarchBare;
-    });
+  libretro = recurseIntoAttrs (callPackage ../applications/emulators/retroarch/cores.nix { });
 
   libretro-core-info = callPackage ../applications/emulators/retroarch/libretro-core-info.nix { };
 
@@ -10012,6 +10007,8 @@ with pkgs;
     python = python3;
   };
 
+  libretranslate = with python3.pkgs; toPythonApplication libretranslate;
+
   librsb = callPackage ../development/libraries/librsb {
     # Taken from https://build.opensuse.org/package/view_file/science/librsb/librsb.spec
     memHierarchy = "L3:16/64/8192K,L2:16/64/2048K,L1:8/64/16K";