Just learned about FediSky, a project by @msonnberger.com that adds an ActivityPub instance sidecar to a PDS. Think Bridgy Fed except hosted by the PDS owner or Wafrn except reversed. Still in early dev, but keeping an eye on this space 👀
Interoperability with Mastodon/ActivityPub · bluesky-social atproto · Discussion #1716
github.comJan 29, 2026 at 5:28 PM
Developer Documentation for ActivityPub & Fediverse | SocialDocs
The comprehensive developer resource for building with ActivityPub, Mastodon, and the Fediverse. Guides, specs, API reference, and tools.
ActivityPub
ActivityPub is a protocol and open standard for decentralized social networking. It provides a client-to-server (C2S) API for creating and modifying content, as well as a federated server-to-server (S2S) protocol for delivering notifications and content to other servers. ActivityPub is the defining standard of the Fediverse, a decentralised social network of various social interaction models, and content types, which consists of independently managed instances of software such as Mastodon, Pixelfed and PeerTube, among others.
Manton Reece - Introducing the Micro.blog PDS
I’ve started rolling out an AT Protocol PDS — personal data server — for new Micro.blog users. In the Bluesky world, a PDS is what stores your posts, follows, photos, and other data from apps. In the same way that creating an account on Micro.blog automatically gives you a fediverse handle, I wanted people to be able to create a Micro.blog account and have everything they needed to sign into Bluesky.
Self-hosting your PDS | jola.dev
How to set up your own atproto Personal Data Server using tranquil-pds and docker compose, walking you through it step by step.
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...
Public Hosted PDS options - created by HilaryBaumann.com
Bridgy Fed technical design — Bridgy Fed 1.0 documentation
So you want to hack on Bridgy Fed, or see how it’s built on the inside? Welcome! You’ve come to the right place.
Deep Dive into Wafrn: How One Platform Self-Hosts Both ActivityPub and Bluesky Identities
Deep Dive into Wafrn: How One Platform Self-Hosts Both ActivityPub and Bluesky Identities 26 February 2026 ActivityPub ATproto self-hosting architecture A technical analysis of Wafrn's dual-protocol a...
Non-bluesky Public Hosted PDSs - Hilary's Leaflet
Existing public hosted PDS options. This also has some things I hope that anyone hosting a PDS will look at. (Backups, account creation and migration will be covered separately.)
Non-bluesky Public Hosted PDSs - Hilary's Leaflet
Existing public hosted PDS options. This also has some things I hope that anyone hosting a PDS will look at. (Backups, account creation and migration will be covered separately.)
Just learned about FediSky, a project by @msonnberger.com that adds an ActivityPub instance sidecar to a PDS. Think Bridgy Fed except hosted by the PDS owner or Wafrn except reversed. Still in early dev, but keeping an eye on this space 👀
Interoperability with Mastodon/ActivityPub · bluesky-social atproto · Discussion #1716
github.comExploring the idea of self-hosting a Bluesky PDS alongside my Indiekit instance — turning it into a dual-protocol server that federates over both ActivityPub and AT Protocol simultaneously. Inspired by Wafrn’s approach, adapted to Indiekit’s plugin architecture and Cloudron deployment. The goal: ow…
Ricardo Mendes
rmendes.netICYMI, I've been quietly reviving Known, renamed it to Idno (its original name), and set it up so it both posts to ActivityPub and syncs to a PDS via standard.site. Not production-ready but super fun. My test instance (with very WIP design) is at idno.werd.io.
