Solving ActivityPub's Hard Problems — Julian Lam — FediCon 2025

**Julian Lam** gave a talk at FediCon 2025: **"Solving ActivityPub's Hard Problems — backfill, discovery, permanence, and more"**. Julian Lam is a Fediverse Developer who is recognized for: NodeBB, Chair of Forums and Threaded Discussions Task Force at SocialCG at W3C Follow Julian Lam at: https://community.nodebb.org/user/julian --- FediCon is a Canadian conference on the Social Web, decentralized social-media & social-networks, and the Fediverse. https://fedicon.ca https://techhub.social/@fedicon https://spectra.video/@fedicon --- FediCon is project of the Open Social Web Society https://opensocialwebsociety.org The Open Social Web Society (and FediCon) was created by: Charles Iliya Krempeaux The Open Social Web Society is a B.C. Society — in B.C., not-for-profit / non-profit organizations are known as societies. --- FediCon 2025 was organized by: • Charles Iliya Krempeaux https://mastodon.social/@reiver • Crissy Kuchisabishii Geco https://tech.lgbt/@Crissy • Sal Rahman ht