Glad you liked it! And thanks for mentioning absurd-sql, I did not know the project.

You are absolutely right on memory and crashes. It is a very inefficient way of storing data in a browser from a memory perspective (and data loss risks). I did mention it in my conclusions :-)

If FileSystemAccessAPIs added block level support and locking for at least certain files that would be a game changer for things like this. In the meanwhile IndexedDB is surely a better option.