This is an implementation of a six degrees of wikipedia solver written in go. It uses an offline copy the full text of wikipedia (52 gigabytes!) as its basis, and builds an index of page relationships using the bolt key/value store. This final index takes up about 20 gigabytes on disk, though much of that is empty buffer space.
You can find the web client for it running at https://wikidegree.kbuzsaki.com