Lemmy

Lemmy is a link aggregator and forum for the fediverse, similar to sites like Reddit, Lobste.rs, or Hacker News. Anyone can run a server, and all servers are federated and connected to the same universe, so users on one server can subscribe to communities on any other server. It is an easily self-hostable, decentralized alternative to Reddit, written in Rust, with each server able to set its own moderation policy.