(Me not taking this seriously)
I personally find Postgres WAY easier than SQLite simply because of the deployment story. I do a lot of hotfixes and dangerous stuff on personal projects, and having two databases complicates that tremendously. I like being able to run hot code on prod.
For the record, this is not the same reason I like postgres for actual production code
Sorry can you please clarify what you mean by having two databases? You can share the same SQLite between applications if you really want