Solving ActivityPub's Hard Problems — Julian Lam — FediCon 2025
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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.orgThe 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 https://techhub.social/@manlycoffee
• Anuj Ahooja https://mastodon.social/@quillmatiq -
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.orgThe 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 https://techhub.social/@manlycoffee
• Anuj Ahooja https://mastodon.social/@quillmatiq@fedicon@spectra.video great video with some excellent information, but unfortunately very mastodon-specific.
In particular, the Trust and Safety section focuses on a problem (domain blocks being limited to binary allow/deny) that's much less of an issue on other Fediverse software. Pleroma/Akkoma have programmable content filter pipelines (MRF), Misskey/forks have pattern and role-based moderation rules, and Sharkey supports fine-grained moderation actions at instance, user, and thread levels. I believe Pixelfed supports AI-based image filtering, and I've heard that Friendica's plugin-based moderation can support almost everything on this list (if configured by an admin).