Looks very nice, minimalistic. Just wanted to make you aware of ForgeFed [0]. Don't know how it fits in your approach and that depends on features you planned, but maybe just like Vervis [1] you could be one of the early adopters and become the forge of choice on the fediverse (they love this stuff, just like they also embrace Sourcehut).

[0] https://forgefed.peers.community

[1] https://dev.angeley.es/s/fr33domlover/p/vervis