Whether it is in staging, in dev or in tests, use the same DB engine as in prod. It will save your butt sometimes.

Also, my docker-compose for a Postgres container is literally:

    services:
      db:
        image: postgres:10
        ports:
          - "5432:5432"

"so much easier" seems very hyperbolic. Not denying that SQLite is an amazing piece of software though!