This guide is for users wishing to migrate their WriteFreely instance from a SQL database to SQLite3.
The steps involved can be used for any similar migration.
The reason I decided to move my database was that I run it as a single user instance for myself only. I don't have thousands of posts, nor will I, and I am interested in running a few other services on the same little server. Most of them use or support PostgreSQL, while WriteFreely currently supports SQL or SQLite3. I don't really want to run more than one database instance if I don't have to.