{
  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.05";
    flake-utils.url = "github:numtide/flake-utils";
  };

  outputs = { self, nixpkgs, flake-utils }:
    flake-utils.lib.eachDefaultSystem (system:
      let
        pkgs = nixpkgs.legacyPackages.${system};
      in
      {
        devShells.default = pkgs.mkShell {
          buildInputs = with pkgs; [
            go
            tailwindcss_4
            gnumake
            postgresql_17
          ];
        };

        apps.default = {
          type = "app";
          program = toString (pkgs.writeShellScript "serve" ''
            # install templ if not already installed
            command -v templ > /dev/null || go install github.com/a-h/templ/cmd/templ@latest
            ${pkgs.make}/bin/make build
          '');
        };
      }
    );
}