these 3 derivations will be built:
  /nix/store/7ss33vvsgqqzz508nqk9idysayqr97l7-sub2api-frontend-0.2.21.drv
  /nix/store/wbylnya9bwhxhmx9869znb07d7y1ka95-sub2api-0.2.21.drv
  /nix/store/mxc0phqrak71a0ba1anbj9rak24ca5ga-check-sub2api.drv