{
  description = "tracker: single-binary project tracker (hackerman edition)";

  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-26.05";

  outputs = { self, nixpkgs }:
    let
      systems = [ "x86_64-linux" "aarch64-linux" "x86_64-darwin" "aarch64-darwin" ];
      forAllSystems = nixpkgs.lib.genAttrs systems;
    in
    {
      packages = forAllSystems (system:
        let pkgs = nixpkgs.legacyPackages.${system}; in
        rec {
          tracker = pkgs.buildGoModule {
            pname = "tracker";
            version = "0.1.0";
            src = self;
            env.CGO_ENABLED = "0";
            vendorHash = "sha256-AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=";
          };
          default = tracker;
        });

      apps = forAllSystems (system: {
        default = {
          type = "app";
          program = "${self.packages.${system}.default}/bin/tracker";
        };
      });
    };
}