{ final, prev, ... }: {
  etesync-dav = final.python3Packages.buildPythonApplication rec {
    pname = "etesync-dav";
    version = "0.35.0";
    format = "pyproject";

    src = prev.fetchFromGitHub {
      owner = "etesync";
      repo = "etesync-dav";
      tag = "v${version}";
      hash = "sha256-CD02nuA9GD/oe7mjExUHIftkPxM1pZQKyDalXSoOhXY=";
    };

    build-system = with final.python3Packages; [ setuptools ];

    pythonRelaxDeps = [ "radicale" ];

    dependencies = with final.python3Packages; [
      appdirs
      etebase
      etesync
      flask
      flask-wtf
      msgpack
      (final.python3Packages.toPythonModule (final.radicale.override { inherit (final) python3; }))
      requests
      requests.optional-dependencies.socks
    ];

    doCheck = false;
  };
}