Unfortunately, as we never tested this setup for release managers, this prevented us from branching-off for NixOS 23.11 (Let's have a great 23.11 release cycle! - #6 by figsoda) and we need to postpone the branch-off for tomorrow as we require the assistance of a GitHub organization owner and no one was available during the release time.
It would be nice to fix this problem for the next time.
Ping the org owners in advance so they are around when the branch-off happens.
Give admin rights to the nixpkgs repo to the nixos-release-managers team? It would be consistent with the idea of empowering the teams in relation to their responsibilities.