{
  config,
  lib,
  pkgs,
  options,
  ...
}:
let

  cfg = config.services.verwaltungstracker;

in
{

  options = {
    services.verwaltungstracker = {

      enable = lib.mkEnableOption "Verwaltungstracker web app";

    } // options.services.froide-govplan.settings;
  };

  config = lib.mkIf cfg.enable {

    nixpkgs.overlays = [
      (self: super: {
        froide-govplan = super.froide-govplan.overridePythonAttrs (oldAttrs: {
          src = pkgs.fetchFromGitea {
            domain = "git.project-insanity.org";
            owner = "onny";
            repo = "verwaltungstracker";
            rev = "e5acfdf19d5af71bc5223c72713c128f3948f39f";
            hash = "sha256-SRxPKherMz9xv/1XZjmwYg74r7Qln+vfLWgHyG5RbxQ=";
          };
          dependencies = oldAttrs.dependencies ++ [ oldAttrs.passthru.python.pkgs.mastodon-py ];
          passthru = oldAttrs.passthru // {
            pythonPath = "${pkgs.python3.pkgs.makePythonPath [pkgs.python3.pkgs.mastodon-py]}:${oldAttrs.passthru.pythonPath}";
          };
        });
      })
    ];

    services.froide-govplan = {
      enable = true;
      settings = cfg.settings;
    };

  };

  meta = {
    maintainers = with lib.maintainers; [ onny ];
  };
}