0.8.0 has been released yesterday heptapod.net/heptapod-080-rele

Major improvements:

- SSH support
- Installable from source
- Full Pull Request imports

now has its own Mattermost instance for direct communication among developers and users: mattermost.heptapod.net

(yes of course it's standard integration)

Fosstodon

Fosstodon is an English speaking Mastodon instance that is open to anyone who is interested in technology; particularly free & open source software.