Yes, I feel out of all “official” adapters, SQLite3 seems to one with the least amount of love, but this seems to be somewhat of a trend in the BEAM community (cf. this feed, for example).
Don’t get me wrong: If I could, I would also do everything I need SQLite3 for with ETS / Mnesia, but the problem comes from 3rd party apps that already use SQLite3 as a DB, for exports or as a backup storage. Eventually, you’ll have to interact with SQLite3, or you use tools like pgloader and try to get the DB into PG before accessing it via Ecto.
