@masukomi @regtur It's very proof of concept and it's never been used in production, though it was used to prototype and prove many ideas.
Would be interesting if someone picked it up and tried to run with and modernize it though! The Guile tooling has advanced significantly since I worked on that.
There are some great ideas in there though, I think. The way it uses the type system with generics along with activitystreams activities and objects I think was really nice.