Please log all bugs and feature requests as issues.
All the post content is written in markdown.
Bear Blog has been built as a platform and not as an indiviual blog system. It is more like Medium than Jekyll. Due to this it currently isn't possible to self-host Bear Blog as an individual blog.
There is currently a Bear Blog Hugo theme available built by Jan Raasch, and a self-hosted version (Polar Bear Blog) written in Go and hosted on the serverless Google Cloud Run architecture by Joseph Spurrier.
Check out the roadmap in the wiki