The GitHub readme is well documented but hard to know how that translates into the dev exp, like with scaling or upgrades and if its features are comparable to managed Postgres providers (I'd assume no but happy to be proven wrong!)
I used to use it but what got me was letting my Dokku install get stale and then upgrading a whole bunch of versions in a row. The old plugin broke, the new one wasn’t compatible, there were version issues.
Nowadays I just run Postgres directly on my Debian box and just create a new user/DB for ever application, then set an env variable for the Dokku app to connect. Postgres is so solid to begin with that it requires no babysitting unless you have very intense workloads (at which point either use a hosted solution or start thinking about how you’ll do your own DBA).
The GitHub readme is well documented but hard to know how that translates into the dev exp, like with scaling or upgrades and if its features are comparable to managed Postgres providers (I'd assume no but happy to be proven wrong!)
[0] https://github.com/dokku/dokku-postgres