I’m thinking about doing this as well. Sometimes SQLite is a better tool for the job. For example, there’s a lot of software that uses a database as their file format. SQLite is ideal for this.

To answer the person’s question, there are easy ways and hard ways with all the trade offs you would expect. The easy way is to use an ODBC connector. That makes it easier to change the DB engine but it’s going to hurt performance. Chances are though that the performance will still be good enough for applications like database-as-file-format.