[dewey]

It's also explained in the post shared:

---

I've heard "why not PostgreSQL?" a few times this week. It was even our original plan in #539! Well, it was a pragmatic choice in two different ways:

The person who volunteered to do the work used SQLite.

I don't want to use solutions that are bigger and more complex than our likely needs. Postgresql is my default for projects, but it does have the added complexity of being a separate service to run, tune, and maintain.

[ozim]

The person who volunteered to do the work used SQLite.

That is a totally valid reason.

Though if you can run it from SQLite there is not much tuning on Postgres that would be needed. I would expect migration to Postgres from MariaDB would be easier.