{
  description = "Hugo website";
  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";

  outputs =
    { nixpkgs, ... }:
    let
      systems = [
        "x86_64-linux"
        "x86_64-darwin"
      ];
      forAllSystems = f: nixpkgs.lib.genAttrs (systems) f;

      devShell =
        system:
        let
          pkgs = nixpkgs.legacyPackages.${system};
        in
        {
          default =
            with pkgs;
            mkShell {
              nativeBuildInputs = with pkgs; [
                go
                hugo
              ];
            };
        };
    in
    {
      devShells = forAllSystems devShell;
      formatter.x86_64-darwin = nixpkgs.legacyPackages.x86_64-darwin.nixfmt-rfc-style;
    };
}