switch to flakes, add a module

.envrc

@@ -1 +1 @@
-use_nix
+use flake

.gitignore

@@ -4,3 +4,4 @@ db/*
 mcchunkie
 deploy.sh
 *.core
+.direnv

flake.lock

@@ -0,0 +1,26 @@
+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1711523803,
+        "narHash": "sha256-UKcYiHWHQynzj6CN/vTcix4yd1eCu1uFdsuarupdCQQ=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "2726f127c15a4cc9810843b96cad73c7eb39e443",
+        "type": "github"
+      },
+      "original": {
+        "id": "nixpkgs",
+        "ref": "nixos-unstable",
+        "type": "indirect"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,54 @@
+{
+  description = "mcchunkie: a chat bot";
+
+  inputs.nixpkgs.url = "nixpkgs/nixos-unstable";
+
+  outputs =
+    { self
+    , nixpkgs
+    ,
+    }:
+    let
+      supportedSystems = [ "x86_64-linux" "x86_64-darwin" "aarch64-linux" "aarch64-darwin" ];
+      forAllSystems = nixpkgs.lib.genAttrs supportedSystems;
+      nixpkgsFor = forAllSystems (system: import nixpkgs { inherit system; });
+    in
+    {
+      overlay = _: prev: { inherit (self.packages.${prev.system}) mcchunkie; };
+      nixosModule = import ./module.nix;
+      packages = forAllSystems (system:
+        let
+          pkgs = nixpkgsFor.${system};
+        in
+        {
+          mcchunkie = pkgs.buildGoModule rec {
+            pname = "mcchunkie";
+            version = "v1.0.15";
+            src = ./.;
+
+            vendorHash = "sha256-LMWaHqmvxG17Z0zh0vmTAYDsc9UkztSCM1+jl2iXSds=";
+
+            # makes outbound http requests
+            doCheck = false;
+
+            ldflags = [ "-X suah.dev/mcchunkie/plugins.version=${version}" ];
+          };
+        });
+
+      defaultPackage = forAllSystems (system: self.packages.${system}.mcchunkie);
+      devShells = forAllSystems (system:
+        let
+          pkgs = nixpkgsFor.${system};
+        in
+        {
+          default = pkgs.mkShell {
+            shellHook = ''
+              PS1='\u@\h:\@; '
+              nix run github:qbit/xin#flake-warn
+              echo "Go `${pkgs.go}/bin/go version`"
+            '';
+            nativeBuildInputs = with pkgs; [ git go gopls go-tools ];
+          };
+        });
+    };
+}

module.nix

@@ -0,0 +1,67 @@
+{ lib, config, pkgs, ... }:
+let cfg = config.services.mcchunkie;
+in {
+  options = with lib; {
+    services.mcchunkie = {
+      enable = lib.mkEnableOption "Enable mcchunkie";
+
+      user = mkOption {
+        type = with types; oneOf [ str int ];
+        default = "mcchunkie";
+        description = ''
+          The user the service will use.
+        '';
+      };
+
+      group = mkOption {
+        type = with types; oneOf [ str int ];
+        default = "mcchunkie";
+        description = ''
+          The group the service will use.
+        '';
+      };
+
+      dataDir = mkOption {
+        type = types.path;
+        default = "/var/lib/mcchunkie";
+        description = "Path mcchunkie will use to store data";
+      };
+
+      package = mkOption {
+        type = types.package;
+        default = pkgs.mcchunkie;
+        defaultText = literalExpression "pkgs.mcchunkie";
+        description = "The package to use for mcchunkie";
+      };
+    };
+  };
+
+  config = lib.mkIf (cfg.enable) {
+    users.groups.${cfg.group} = { };
+    users.users.${cfg.user} = {
+      description = "mcchunkie service user";
+      isSystemUser = true;
+      home = "${cfg.dataDir}";
+      createHome = true;
+      group = "${cfg.group}";
+    };
+
+    systemd.services.mcchunkie = {
+      enable = true;
+      description = "mcchunkie server";
+      wantedBy = [ "network-online.target" ];
+      after = [ "network-online.target" ];
+
+      environment = { HOME = "${cfg.dataDir}"; };
+
+      serviceConfig = {
+        User = cfg.user;
+        Group = cfg.group;
+
+        ExecStart = ''
+          ${cfg.package}/bin/mcchunkie
+        '';
+      };
+    };
+  };
+}

shell.nix

@@ -1,12 +0,0 @@
-{ pkgs ? import <nixpkgs> { } }:
-pkgs.mkShell {
-  shellHook = ''
-    export NO_COLOR=true
-    export PS1="\u@\h:\w; "
-  '';
-
-  nativeBuildInputs = with pkgs.buildPackages; [
-    go
-    go-tools
-  ];
-}