> Nice list! I'd say the SQLite with WAL is the biggest money saver mentioned.

Funny you said that. I migrated an old, Django web site to a slightly more modern architecture (docker compose with uvicorn instead of bare metal uWSGI) the other day, and while doing that I noticed that it doesn't need PostgreSQL at all. The old server had it already installed, so it was the lazy choice.

I just dumped all data and loaded it into an SQLite database with WAL and it's much easier to maintain and back up now.

Yep, it literally is a one-file backup. And runtime it's so much faster for apps where write serialisation is acceptable.