Am I the only one out of the loop on what @Bonfire is? Am I correct on that it's a collection of software (some of it in Elixir?) to do different federated things? Bonfire Social seems to be a Mastodon alternative? https://bonfirenetworks.org talks in very lofty terms about a network but a network of what? There seems to be a website builder (Mosaic) that also has some ActivityPub support?
You got that mostly right! We are indeed working trying to improve our website and how we describe the project...
Bonfire is entirely made up of extensions/plugins written in Elixir with Phoenix/LiveView/Surface.
Mosaic is more of a service offering to build digital spaces by using/extending/creating Bonfire extensions (all open source).
Hope that helps!