On HackerNews: "ActivityPub, the secret weapon of the Fediverse"
YOUTUBE Tgq0lqZ1Mvw ActivityPub: past, present, future" - Keynote by Christopher Lemmer Webber
YOUTUBE NAfjEnu6R2g "Architectures of Open Robustness" - Mark Miller's important keynote at ActivityPub 2019.
No mention yet of OcapPub (Mark Miller hat tip Kate Sills). gitlab 