You can find details on the design and implementation of rqlite from [these blog posts](http://www.philipotoole.com/tag/rqlite/).
rqlite was also discussed at th [GoSF](http://www.meetup.com/golangsf/) [April 2016](http://www.meetup.com/golangsf/events/230127735/) Meetup. You can find the slides [here](http://www.slideshare.net/PhilipOToole/rqlite-replicating-sqlite-via-raft-consensu).
## Node design
The diagram below shows a high-level view of a rqlite node.