[pavelevst]

VM with 1GB ram and some swap file can easily run rail app, Postgres and redis. With that you don’t have to limit yourself to not able to scale later. I never used sqlite, can it be used by multiple process simultaneously? Eg rails server and rails console

[fractaledmind]

When you open your database connection in WAL journal mode, you can have multiple concurrent readers. This is the new default for all Rails applications. WAL mode doesn’t allow concurrent writers, but you are often talking about milliseconds to wait for the busy connection to resolve, and SQLite retries for you invisibly.