{ buildApp, nextcloudVersion }:
let
  social_0_4_2 = buildApp rec {
    appName = "social";
    version = "0.4.2";
    url = "https://github.com/nextcloud/social/releases/download/v${version}/${appName}-${version}.tar.gz";
    sha256 = "0nzsl70al4aqblbyzddlrhivbk2x559mbwn8slyg3k0wy9ynsi4p";
  };
  versions = {
    "20" = social_0_4_2;
    "21" = social_0_4_2;
  };
in
  versions."${builtins.toString nextcloudVersion}" or (throw "Unsupported version for nextcloud app social")