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Holobrine

@holobrine.bsky.social

Ocaps in ATProto

Capability Chains: A Protocol-Level Extension of Object Capabilities

Apr 5, 2026 at 3:37 AM

social

Leaflet (@leaflet.pub)

🍃 delightful docs & social publishing 📝 try: leaflet.pub/home explore: leaflet.pub/reader lab notes: lab.leaflet.pub/ code: tangled.org/leaflet.pub/leaflet made by @schlage.town + @cozylittle.house + @awarm.space email: contact at leaflet dot pub

Tynan Purdy ⁂

@tynanpurdy.com

Designer and social web ⁂ advocate 🍻 @atproto.boston 🔎 @ecosystemaction.com 🤖 @lobstahbots.com 🌐 tynanpurdy.com 🔗 links.tynanpurdy.com 💬 Signal @tynanpurdy.95

Holobrine

This comparison addresses questions and feedback from the ATProto community, in particular from Zicklag (@zicklag.dev) and Brooklyn Zelenka (@expede.wtf). The previous comparison piece remains available for transparency. Based on that feedback, this piece has been substantially revised: two sections have been removed as inaccurate, and the framing has shifted from "improvements" to "tradeoffs and advantages."

Capability Chains vs UCAN: Tradeoffs and Advantages

faggat

kill internet handle, fuck usernames, and marry email.

fuck marry kill: usernames, email, and internet handle

hottakes.leaflet.pub

Will

Journey to a distributed PDS: TOTP auth

willdot.leaflet.pub

nate

via the new Semble API

get in loser, we're-a-sembling

nate.leaflet.pub

Lyre Calliope 🧭✨

thinking about an informal weekly blogging format

captaincalliope.leaflet.pub

Modal Foundation

Major updates and announcements

Announcing mu.social, and other news

modalfoundation.leaflet.pub

Holobrine

The bar other data sovereignty substrates must meet, to be compatible with Capability Trees.

The Substrate Requirements for Capability Trees

User & Agents

What is the future of extensions on the web? Do we even need extensions provided through a store if we can generate them ourselves?

An outlook on extending the web

userandagents.leaflet.pub

Eurosky Social

Do you have a feature request for Eurosky? You can add it here!

Eurosky Feature Requests

eurosky.leaflet.pub

Graze Social

An announcement from Graze

Better, Together

graze.leaflet.pub

Open Social

Some updates on what has released since Atmosphereconf!

What's new in Open Social — April 2026

opensocial.leaflet.pub

scios.tech

The Future of Science Depends on Open Source Engineers

scios.leaflet.pub

bryan newbold

Why AT URIs are not valid under IETF RFC-3986, what the impact is, and some possible ways forward.

The AT-URI Syntax Mess

bnewbold.leaflet.pub

Eurosky Social

Do you have a feature request for Eurosky? You can add it here!

Eurosky Feature Requests

eurosky.leaflet.pub