As a platform, Hubzilla holds a tremendous amount of versatility and depth in what it can do. Mike Macgirvin, the platform’s creator, has famously quipped that the system does not have a commercial analogue to draw comparisons to — it’s not just a social network, it’s not just a forum, it’s not just a cloud storage solution, and it’s not just a content management system.
According to the definition on the project website:
Hubzilla is a powerful platform for creating interconnected websites featuring a decentralized identity, communications, and permissions framework built using common webserver technology.
(...) Hubzilla is best suited towards people who want to host their own websites that can also act as a cloud storage provider as well as a decentralized social communication platform. It is meant for the homesteaders of the Internet generation, people who want to withdraw from third-party services and data providers.
https://medium.com/we-distribute/got-zot-mike-macgirvin-45287601ff19
https://medium.com/we-distribute/a-quick-guide-to-the-free-network-c069309f334
https://thoughtshrapnel.com/2018/05/31/protocols-for-the-free-web/
https://medium.com/@tamanning/nomadic-identity-brought-to-you-by-hubzilla-67eadce13c3b
https://www.howtoforge.com/tutorial/how-to-install-hubzilla-on-ubuntu/