diff --git a/flake.nix b/flake.nix
index 4412f0e..9024e14 100644
--- a/flake.nix
+++ b/flake.nix
@@ -313,7 +313,9 @@
         spkgs.callPackage ./pkgs/gotosocial.nix {inherit spkgs;};
       zutty = upkgs.callPackage ./pkgs/zutty.nix {
         inherit upkgs;
-        isUnstable = true;
+      };
+      mvoice = upkgs.callPackage ./pkgs/mvoice.nix {
+        inherit upkgs;
       };
       inherit (xintray.packages.${system}) xintray;
       inherit (tsvnstat.packages.${system}) tsvnstat;
diff --git a/pkgs/mvoice.nix b/pkgs/mvoice.nix
new file mode 100644
index 0000000..7176a45
--- /dev/null
+++ b/pkgs/mvoice.nix
@@ -0,0 +1,51 @@
+{
+  lib,
+  stdenv,
+  fetchFromGitHub,
+  pkgs,
+  ...
+}:
+stdenv.mkDerivation {
+  pname = "mvoice";
+  version = "unstable-2023-05-30";
+
+  src = fetchFromGitHub {
+    owner = "n7tae";
+    repo = "mvoice";
+    rev = "8e0a9fb350f8308d7ee7e07e3cc48e7c33a7be64";
+    sha256 = "sha256-DNCF/m56owu8DYcv2lLxUZ+mVpmivXbPjBFE2V/23pE=";
+  };
+
+  nativeBuildInputs = with pkgs; [
+    alsa-lib
+    curl
+    fltk
+    gcc
+    gettext
+    gnutls
+    msgpack
+    opendht
+    paprefs
+    pavucontrol
+    pulseaudio
+  ];
+
+  prePatch = ''
+    substituteInPlace Makefile \
+      --replace "/bin/cp" "cp"
+    substituteInPlace Makefile \
+      --replace "/bin/rm" "rm"
+  '';
+
+  preBuild = ''
+    export HOME=$out
+  '';
+
+  meta = with lib; {
+    description = "A prototype M17 voice application for ham radio";
+    homepage = "https://github.com/n7tae/mvoice";
+    license = licenses.gpl3;
+    platforms = platforms.unix;
+    maintainers = with maintainers; [qbit];
+  };
+}