I’m still amazed that with all the vibe coding, no one has created a Postgres alternative
Why would they? Postgres is free and does an amazing job.
You can create a project on vibes, but you cannot maintain one on vibes.
Many recent relational databases speak the Postgres wire protocol. For wholesale replacement, pgrust is a recent, contentious contender.
Someone tried. https://jepsen.io/analyses/particledb-1.1.4