init

nix/module.nix

@@ -0,0 +1,37 @@
+{ self, metadata, ... }:
+{
+  flake.nixosModules.default =
+    {
+      config,
+      lib,
+      pkgs,
+      ...
+    }:
+    let
+      cfg = config.programs.example;
+
+      inherit (lib)
+        mkEnableOption
+        mkOption
+        mkIf
+        ;
+
+      inherit (pkgs.stdenv.hostPlatform) system;
+
+    in
+    {
+      options.programs.example = {
+        enable = mkEnableOption metadata.package.name;
+
+        package = mkOption {
+          default = self.packages.${system}.default;
+          description = "Package to use";
+          type = lib.types.package;
+        };
+      };
+
+      config = mkIf cfg.enable {
+        environment.systemPackages = [ cfg.package ];
+      };
+    };
+}