I’m trying to wrap my head around the ActivityPub spec with a view to building federation into this site. At first glance, it seems relatively straightforward (at least conceptually), but when you dig in and actually try to implement it, it gets complicated real quick.
I know I could use a service like Bridgy Fed, but a) I don’t want my username to be @campegg.com@campegg.com, which is how Bridgy is set up; and b) where’s the fun in doing that? (Although I may spend some time investigating if there are any Python/Django libraries that could make life easier.)