A highly opinionated guide to learning about ActivityPub (2019)
ActivityPub Could Be The Future (2020) (HN)
Read.as - Long-form ActivityPub-enabled reader. (Code)
gourami - Intentionally small, lightweight ActivityPub microblogging service. (Lobsters)
Plume - Federated blogging engine, based on ActivityPub. (Web)
Guide for new ActivityPub implementers (2020)
Epicyon - ActivityPub protocol compliant federated social network server.
Lemmy - Federated alternative to reddit in rust. (Code) (HN) (Communities) (Lemmy UI code)
ForgeFed - Extension to ActivityPub for web-based Git services federation.