Monitoring and troubleshooting software and service.
Manyverse is a social network without the bad stuff, built on the peer-to-peer SSB protocol. It's free and open source, and available for desktop and mobile.
Discourse bills itself as "The online home for your community: We make it easy to connect and collaborate anytime, anywhere"
Drupal-based "digital spaces that empower your members to connect, share knowledge and spread their ideas."