{ buildApp, nextcloudVersion }:
let
  circles_0_20_11 = buildApp rec {
    appName = "circles";
    version = "0.20.11";
    url = "https://github.com/nextcloud-releases/circles/releases/download/${version}/${appName}-${version}.tar.gz";
    sha256 = "00r9nyjq38xidgdlgkrxgyhn7bn1w2c4m4pbm26f7gglmb4lsmml";
  };
  circles_0_21_4 = buildApp rec {
    appName = "circles";
    version = "0.21.4";
    url = "https://github.com/nextcloud-releases/circles/releases/download/${version}/${appName}-${version}.tar.gz";
    sha256 = "1bxxa3ss4726zb7k13fhs7c39jvzdf8rmzvrx3wbk9wm2avhpnc1";
  };
  versions = {
    "20" = circles_0_20_11;
    "21" = circles_0_21_4;
    # Integrated in core from 22
  };
in
  versions."${builtins.toString nextcloudVersion}" or (throw "Unsupported version for nextcloud app circles")