I'd like to point out that complete really means complete, otherwise just another blogengine would probably really not be noteworthy. It is not a static site generator that does not need a backend area, it is a completely dynamic blog that shows the editor and its few settings in the frontend. Complete blog also means that is has comments, linkbacks and a caching scheme (that currently still uses the database, but already helps a lot).
It's written in Ruby/Sinatra with SQLite, and uses Browserid for its login. If there are questions/feedback, I'll be here for a while.