pkgs:

{
  # duksebot = pkgs.callPackage ./duksebot { };

  # Use patched version from Karl.
  smu = pkgs.smu.overrideAttrs (old: {
    version = "2022-08-01";
    src = pkgs.fetchFromGitHub {
      owner = "karlb";
      repo = "smu";
      rev = "bd03c5944b7146d07a88b58a2dd0d264836e3322";
      hash = "sha256-Jx7lJ9UTHAOCgPxF2p7ZoZBZ476bLXN5dI0vspusmGo=";
    };
  });
}