Matthias Pfefferle

@pfefferle
4.8K Followers
1,034 Following
5.1K Posts

web worker, blogger, podcaster, #openweb advocate and citizen of the #indieweb and the #fediverse.

Open Web Wrangler @ #Automattic

I am currently working on the #ActivityPub plugin and several #IndieWeb (mainly #Webmentions) plugins for #WordPress! Besides of that, I maintain some other small Open Web plugins and try to help out on the #pluginkollektiv.

Follow my blog on the fediverse: "@pfefferle"

#fedi22 #microformats

WordPresshttps://profiles.wordpress.org/pfefferle/
Bloghttps://notiz.blog
Codehttps://github.com/pfefferle
Podcasthttps://openchannels.fm/host/matthias-pfefferle/

The web was always social

Diving into the idea of bridging different social networks and protocols like ATproto and ActivityPub to enhance the web. Looking back at my personal web journey, from Web 2.0 to now, emphasizing that building connections can strengthen online communities.

https://herve.bzh/the-web-was-always-social/

The web was always social

Diving into the idea of bridging different social networks and protocols like ATproto and ActivityPub to enhance the web. Looking back at my personal web journey, from Web 2.0 to now, emphasizing t…

Herve Family
Now in the Reader: Bluesky, Mastodon, and the Fediverse

If you’ve been blogging for a while, you’ll probably know the WordPress.com Reader – a calm place to catch up on the blogs you follow, without an algorithm deciding what you see. This m…

WordPress.com News

Radical Speed Month, and a new Reader

During Automattic's Radical Speed Month, Matthias and I built Reader Everywhere: a new way to follow Bluesky, Mastodon, and the Fediverse from the WordPress.com Reader. 90-second demo below. :)

https://herve.bzh/radical-speed-month-and-a-new-reader/

time for a little break... see you in a week ☺️

#vacation

Your WordPress Site — From RSS Feed to Social Account

Radical Speed Month is over, and the Reader's new Social section is now live. Your Fediverse-enabled WordPress site can be used from inside it, and the plugin's ActivityPub API has its first real client in production.

https://activitypub.blog/2026/05/22/your-wordpress-site-from-rss-feed-to-social-account/

ATmosphere 1.0.0 — Liftoff

This post isn't about the ActivityPub plugin. ATmosphere is a separate plugin from the same small team, for the other half of the open social web: the AT Protocol, the open network behind Bluesky. We're posting about it here because the audience overlaps and the mission is the same. If there's enough interest, we'll spin up a dedicated blog for it. Until then, this is the closest venue. Today is the public 1.0.0 release on WordPress.org. After months of design notes, internal experiments, […]

https://activitypub.blog/2026/05/20/atmosphere-1-0-0-liftoff/

Posting from c2s

The WordPress ActivityPub plugin quietly released an amazing feature in version 8.1.0 back in April.

After a fair bit of testing, with various developers, including yours truly, Matthias @pfefferle added support for the #ActivityPub API.

https://activitypub.blog/2026/04/22/8-1-0-by-the-numbers/

This very post is written using a custom client I’m building 😉

8.1.0 — By the Numbers

ActivityPub for WordPress 8.1.0 is here. A new Fediverse statistics feature leads the release: a dashboard widget, monthly and annual email reports, and a shareable stats block with sharepic. Along…

ActivityPub for WordPress

Revisiting Web Intents and the Ongoing Challenges of Decentralized Web Services

In a conversation about the future of the open web, Paul Kinlan and Matthias Pfefferle explore the challenges of decentralized identity, interoperability, and potential solutions like Web Intents, advocating for user-centric systems.

https://openchannels.fm/revisiting-web-intents-and-the-ongoing-challenges-of-decentralized-web-services/

We've been launching a ton of Bridgy Fed & Bounce features, and we have a lot more coming!

We're also a non-profit run by two full-time volunteers, and majority of our expenses are infrastructure to keep it all running.

If you believe in the mission and love our work, please consider donating 🫶🏼

http://patreon.com/anewsocial