Comment by Lhiw

This view is the view I was talking about in the op.

Inadequate for what? Most persistence layers I've ever seen did not need MySQL, postgres or MongoDB.

> high concurrency, managing multiple connections, replication

In the grand scheme of things, basically nobody needs these things. Sorry, your app is overengineered.

Your app actually suffered in areas such as performance, security, portability, complexity and cost.

Developers love to prematurely optimise everything. Most SaaS products today don't need a dedicated database server. Most apps that require a database server backend would be better with sqlite, most Dev/test/staging/prod pipelines would be better served with sqlite files.