Awesome, excited to hear it. By the way, I am no longer working on reconciling nip 29 with relay-based groups, instead I'm creating a new NIP that will hopefully serve the purpose: https://github.com/coracle-social/nips/blob/relay-chat/xx.md. The NIP is very much a WIP, lots of the hard problems with detecting relay membership still need to be solved.

If you're interested in pooling resources, my client is here: https://github.com/coracle-social/flotilla