flake.nix

{
  inputs.nixpkgs-repo.url = "github:NixOS/nixpkgs/6fc7203e423bbf1c8f84cccf1c4818d097612566";
  inputs.npmlock2nix-repo = { url = "github:nix-community/npmlock2nix?rev=9197bbf397d76059a76310523d45df10d2e4ca81"; flake = false; };
  outputs = { self, nixpkgs-repo, npmlock2nix-repo }:
    let
      nixpkgs = nixpkgs-repo;
      systems = [ "x86_64-linux" "aarch64-linux" "x86_64-darwin" "aarch64-darwin" ];
      forAllSystems = nixpkgs.lib.genAttrs systems;
    in
    {
      packages = forAllSystems (system:
        let
          pkgs = import "${nixpkgs}" {
            config.allowUnfree = true;
            inherit system;
          };
        in
        {
          "app_node_modules" =
            let
              npmlock2nix = import npmlock2nix-repo {
                inherit pkgs;
              };
              pkgs = import "${nixpkgs}" {
                config.permittedInsecurePackages = [ ];
                inherit system;
              };
            in
            npmlock2nix.v2.node_modules
              {
                src = (
                  let
                    lib = pkgs.lib;
                    lastSafe = list:
                      if lib.lists.length list == 0
                      then null
                      else lib.lists.last list;
                  in
                  builtins.path
                    {
                      path = ./.;
                      name = "source";
                      filter = path: type:
                        let
                          fileName = lastSafe (lib.strings.splitString "/" path);
                        in
                        fileName != "flake.nix" &&
                        fileName != "garn.ts";
                    }
                );
                nodejs = pkgs.nodejs-18_x;
              };
        }
      );
      checks = forAllSystems (system:
        let
          pkgs = import "${nixpkgs}" {
            config.allowUnfree = true;
            inherit system;
          };
        in
        { }
      );
      devShells = forAllSystems (system:
        let
          pkgs = import "${nixpkgs}" {
            config.allowUnfree = true;
            inherit system;
          };
        in
        {
          "app" = ((pkgs.mkShell { }).overrideAttrs (finalAttrs: previousAttrs: {
            nativeBuildInputs =
              previousAttrs.nativeBuildInputs
              ++
              [ pkgs.nodejs-18_x ];
          })).overrideAttrs (finalAttrs: previousAttrs: {
            nativeBuildInputs =
              previousAttrs.nativeBuildInputs
              ++
              [ pkgs.bun ];
          });
        }
      );
      apps = forAllSystems (system:
        let
          pkgs = import "${nixpkgs}" { inherit system; };
        in
        { }
      );
    };
}