I was on board from the beginning! What a great product. Too bad they dropped support for Postgres at some point, otherwise it would still be my platform of choice!
I’ve seen a couple comments about this issue, as well as it’s mention in the article. What about Postgres is appealing to the point that it is a deal breaker not to have? Is it familiarity or a specific aspect like scaling or ecosystem?
I prefer Postgres because of its (in my opinion: better) features and my familiarity with it. It wouldn't be a challenge to setup a MySQL/MariaDB database if I wasn't already running a largerish Postgres instance where I want to store my stuff. So the deal breaker here is me not wanting to have two DBMS running on the server.