the thread on sqlite on a net reminded me that i’m still poking around for a new db server. i’d like:
i’ve come across several, to date that are interesting
anyone have something else they’re using?
PostgreSQL + postgREST
there are some other REST front ends for PostgreSQL (like psql-api but it looks like its been largely idle for years)
Postgresql is one of my faves 
Supabase looks like it has the things you want
right. supbase is actually postgres + postgrest + gotrue (for auth), and, as you know, you can self-host it via docker.
what’s wild, though, is there is no account lockout. you can brute force your way in, and there is nothing to stop you.
the same is true for pocketbase. i have not looked at soul, yet.
supabase does have a hook that could be used to write something, but it’s only available for teams accounts, which cost $500/month. i’ve been talking to them for a couple of weeks about writing a brute-force-limit and submitting a PR, but the mechanism for hooking in is still not defined.
MariaDB? Anybody?
Fail2Ban can help with that! I found a filter design proposal but it needs tweaks to actually function. A little light reading and I’m sure you’ll be better off than “let them keep trying.” 
imagine just leaving an admin account exposed to the air
No
PostgreSQL is much nicer and absolutely 100% free for ANY use commercial or otherwise
Maria & mySQL have long had screwy dual licensing
And they just arent as capable IMHO
Valentina DB Server.
Directus.
This is an interesting hosting services for a variety of RDBMSs.