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

  outputs = {
    self,
    nixpkgs,
  }: let
    system = "x86_64-linux";
    pkgs = nixpkgs.legacyPackages.${system};
    rev =
      if (self ? rev)
      then self.rev
      else "dirty";
  in {
    formatter.${system} = pkgs.alejandra;

    devShells.${system}.default = pkgs.mkShell {
      buildInputs = with pkgs; [
        gnumake
        go
        hugo
      ];

      shellHook = ''
        echo '
        ┏━╸╺┳╸┏━┓╻  ╺━┓ ┏━╸┏━┓
        ┃   ┃ ┣┳┛┃  ┏━┛ ┣╸ ┗━┓
        ┗━╸ ╹ ╹┗╸┗━╸┗━╸╹┗━╸┗━┛
        '
      '';
    };

    packages.${system}.default = pkgs.stdenv.mkDerivation {
      pname = "ctrlz.es";
      version = "v" + builtins.substring 0 7 rev;
      src = ./.;
      buildInputs = with pkgs; [hugo];

      unpackPhase = false;

      buildPhase = "hugo";

      installPhase = ''
        mkdir -p $out/var/lib/ctrlz.es
        cp -r public/* $out/var/lib/ctrlz.es/
      '';
    };

    overlays.default = final: prev: {ctrlz = self.packages.${system}.default;};
  };
}