{
  description = "Shared Nix library for static site flakes";

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

  outputs = { self, nixpkgs }: {
    lib.mkSite =
      { self
      , nixpkgs
      , src
      , system          ? "x86_64-linux"
      , buildPhase      ? "true"
      , installPhase    ? ''
          mkdir -p $out
          cp -r dist/. $out/
        ''
      , devPackages     ? []
      }:
      let
        pkgs = nixpkgs.legacyPackages.${system};

        site = pkgs.stdenv.mkDerivation {
          name = "site";
          inherit src buildPhase installPhase;
        };
      in
      {
        packages.${system}.default = site;

        devShells.${system}.default = pkgs.mkShell {
          packages = devPackages;
        };
      };
  };
}