{ buildApp, nextcloudVersion }:
let
  spreed_10_0_10 = buildApp rec {
    appName = "spreed";
    version = "10.0.10";
    url = "https://github.com/nextcloud-releases/${appName}/releases/download/v${version}/${appName}-${version}.tar.gz";
    sha256 = "0daajsc7s52l56h58vhvnh8d1a2vh14rkdayjgwc75bh7zv506yi";
  };
  spreed_11_3_3 = buildApp rec {
    appName = "spreed";
    version = "11.3.3";
    url = "https://github.com/nextcloud-releases/${appName}/releases/download/v${version}/${appName}-${version}.tar.gz";
    sha256 = "0mhglx3rf7j4dyf8asmwakvzpn2mjcysa0iwfn42b2cyd7gw4viq";
  };
  spreed_12_1_2 = buildApp rec {
    appName = "spreed";
    version = "12.1.2";
    url = "https://github.com/nextcloud-releases/${appName}/releases/download/v${version}/${appName}-${version}.tar.gz";
    sha256 = "02npw6iqi5b36xqzkdgmxsv464i67yfzf7b3bj3gdpn6w50mnnl9";
  };
  spreed_13_0_0 = buildApp rec {
    appName = "spreed";
    version = "13.0.0";
    url = "https://github.com/nextcloud-releases/${appName}/releases/download/v${version}/${appName}-v${version}.tar.gz";
    sha256 = "0r07zrkld7miv5wdn5ssrhqylaplvbc9fr1qnil023d6yyc4jfwi";
  };
  versions = {
    "20" = spreed_10_0_10;
    "21" = spreed_11_3_3;
    "22" = spreed_12_1_2;
    "23" = spreed_13_0_0;
  };
in
  versions."${builtins.toString nextcloudVersion}" or (throw "Unsupported version for nextcloud app spreed")