{
  description = "Global packages for dotfiles";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
  };

  outputs =
    { self, nixpkgs }:
    let
      systems = [
        "x86_64-darwin"
        "aarch64-darwin"
        "x86_64-linux"
        "aarch64-linux"
      ];
      forAllSystems = f: nixpkgs.lib.genAttrs systems (system: f system);
    in
    {
      packages = forAllSystems (
        system:
        let
          pkgs = nixpkgs.legacyPackages.${system};
        in
        {
          default = pkgs.buildEnv {
            name = "dotfiles-packages";
            paths = [
              pkgs.nil
              pkgs.nixfmt
            ];
          };
        }
      );
    };
}