I have switched to https://chatto.run/. Its actually well engineered (not vbibecoded), the devs are responsive and is kinda opinionated instead of do everything and we cater for every possible scenario but be great at nothing like matrix.

Vitess/Planetscale? Neki is essentially a version of Vitess for Postgres fom the same guys.

Many of the engineers who built Neki also worked on Vitess for years. But it's a ground up new implementation designed to specifically target Postgres.

Ive been poking with the muse code binary - seems to be written in rust, looks similar to codex but either its a very hard fork (i also see dissimilar things like config format is different, no acp, etc) or is just heavily inspired by it (more likely).