Yeah sorry, that’s what I meant by testing stuff. I suppose if you’re always testing things in the DB, it makes sense. Usually in my case, I would spin up a Postgres instance only for the week or so that I’m developing and testing with it. Eventually I push to cloud though. I don’t keep it running locally unless I’m testing a change. But I’m not testing changes often… I wouldn’t consider it part of my stack for that reason. I might run a local RDBMS a few times a year.
On the other hand, I will use SQLite or DuckDB all the time for local work. Not sure if those count as RDBMS, they are serverless.
I won’t never consider a local RDBMS as having stable data storage, so it falls into a strictly “testing” category for me, I guess “development and testing” is more accurate.