








Activity Vocabulary
Please check the errata for any errors or issues reported since publication.
ActivityPub, AT Protocol, and more!
Talking about this article and how ActivityPub and AT Protocol are maybe not as different as people might think. We covered some slides to an unrecorded talk of mine, which explores a lot of things...
skarnio (@skarnio@alquimidia.social.br)
@vicwalker @sirius Tem algumas frentes de trabalho interessantes, como criar objetos portáteis nativos dentro do #ActivityPub (https://github.com/reiver/vibefed/blob/master/skills/kb-fediverse-portable-objects/SKILL.md) e a possibilidade AP + #Solid (https://activitypods.org / https://) e até com AT (https://forum.solidproject.org/t/integrating-activitypub-within-solid-specs/8355/26). Acredito que seja uma questão de tempo pra esse salto quântico na Web Social Aberta. O que acha @navigator?
FediForum Talk: How To Bullshit Your Way Through a Conversation about ActivityPub
By Evan Prodromou, Social Web Foundation and editor of the ActivityPub standard. One of the best bluffers in the field of distributed social networks gives you just enough knowledge about ActivityP...
ActivityPods - Personal data spaces powered with ActivityPub
Brings together ActivityPub and Solid Pods and empowers developers to create truly decentralized applications.

Developer Documentation for ActivityPub & Fediverse | SocialDocs
The comprehensive developer resource for building with ActivityPub, Mastodon, and the Fediverse. Guides, specs, API reference, and tools.

Alexander Obenauer
Exploring new and renewed ideas for how personal computing and the interfaces we think with can better serve people’s lives – expanding opportunity, agency, curiosity, and creativity.
Welcome | Takahē
Takahē is an ActivityPub server designed for efficient use on small- to medium-size installations, and which allows you to host multiple domains on the same infrastructure. It’s currently in an beta state, meaning most things work and it can talk to most of the Fediverse, but there’s still some polish and features left to add. The flagship instance can be found at takahe.social, and if you’re interested, you can also learn more in our documentation, browse the code on our GitHub repository, come and chat to us on Discord, or read some of Andrew’s blogs about building it.
Basic | The Personal Computing Platform
We build products, tools, and standards to make computers more personal.

Feeling of Computing — Conversations
There are a lot of architectural bits, but if I had to pick one design feature it's Lexicons. Lexicons allow for new shared data types and structures in a way that are immediately available on network for any other service provider to adopt. Getting shared agreement in ActivityPub is hard.
Pedro Vezza
Why did you decide to bet on atproto over Mastodon or similar?
User-tailorable systems: pressing the issues with buttons
everest-pipkin.com
Wesley Finck (@wesleyfinck.org)

What is Malleable Software Now | Bryan Min (02-27-2026)

Apps and programming: two accidental tyrannies

Agents vs Operating Systems : The War That Could Kill Apps

Everest Pipkin

Digital Topology & Economic Power
bandukwala.me
LN 040: The venerable hyperlink
everest-pipkin.com
Loper OS » Why Hypercard Had to Die