#ActivityPub is, in many ways, an accidental reboot of the #openweb. It came into existence because the #dotcons (#mainstreaming platforms) showed up to a World Wide Web Consortium meeting and didn’t find anything useful for themselves, so they walked away, leaving the “weirdos” to get on with it. Working with the #4opens as a foundation, this loose group managed to hold things together long enough to develop the ActivityPub standard and release it to the world.
From commons to cats, has in recent years seen a shift toward the familiar “libertarian cats” dynamic of fragmented, individualistic and hard to coordinate paths. As a result, this #openweb reboot is now being partially consumed by the same forces it set out to move beyond. That might not be the outcome many hoped for, but it’s not the end of the story.
There are still active efforts to build on this native path – alternatives to strengthen grassroots infrastructure to keep moving away from #mainstreaming. The focus isn’t on reforming the mainstream, it’s on composting it.
Why this matters – This story highlights key tensions in the #openweb – Grassroots vs institutional power, commons vs control and culture vs capital. It also shows the importance of:
- #DIY culture
- resourcefulness under constraint
- communities that build without permission
The “accidental” nature of ActivityPub is important as it reminds us that real innovation comes from the edges, not the centre. So what is ActivityPub? It is a decentralised social networking protocol, standardised by the World Wide Web Consortium in 2018. It enables interoperability between platforms, forming what we now call the #Fediverse. It builds on earlier #openweb technologies:
- RSS / Atom
- ActivityStreams
- OStatus
- Pump.io
The goal is a unified, federated #openweb communication layer based on #4opens principles.
Historical Milestones
Predecessors (2007–2014)
Early work on RSS and decentralised social tools like StatusNet, OpenMicroBlogging, and Pump.io laid the groundwork.
W3C Development (2014–2017)
The Social Web Working Group developed the protocol (then called ActivityPump).
Standardisation (2018)
ActivityPub became an official W3C Recommendation.
Adoption (2018–Present)
Mastodon provided critical mass as a Twitter-like entry point.
Diversification
Other platforms followed:
- PeerTube (video)
- Pixelfed (images)
- Lemmy (links)
#dotcons Interest (2022–2025)
After upheaval at Twitter/X, mainstream interest surged:
- Threads began implementing ActivityPub
- WordPress added federation support
The Fediverse is now approaching a decade of growth, ActivityPub continues to expand because it allows people on one server to interact with others in decentralized communication without walled gardens. It is a return to simpler (#KISS), interoperable networking. But the open question, tension, remains:
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OLDER DRAFT
#ActivityPub is an accidental reboot of the #openweb. It came into existence because the #dotcons (#mainstreaming platforms) attended a #wc3 meeting but did not find anything useful for themselves. As a result, they left the “weirdos” to build an approach based on the #4opens principles. The “weirdos” managed to keep things together long enough to develop the #activertypub standard and release it to the world. However, in recent years, there has been a shift towards the normal “libertarian cats” path, and this #openweb reboot is being consumed. While this outcome may not be what many desired, there are efforts to build real alternatives and shift away from #mainstreaming. The focus is on composting the mainstream approach rather than reforming it.
This is interesting because it provides insights into the dynamics and challenges of the #openweb movement. It highlights the tension between #mainstreaming platforms and grassroots efforts, showcasing the passion and dedication of communities working towards an open and decentralized web. The accidental nature of the #ActivityPub reboot adds an element of serendipity to the story, emphasizing the power of #DIY culture and the resource constraints faced by #openweb technologies. The recent shift towards a “libertarian cats” path and the potential consumption of the #openweb reboot raise important questions about the future of alternative platforms and the need for continued resistance against #mainstreaming.
ActivityPub is a decentralized social networking protocol, standardized by the W3C in 2018, that enables interoperability between different platforms, growing the “Fediverse.”
It originated from earlier #openweb protocols (like RSS, atom, activitystreams, OStatus and Pump.io) to provide a unified, #4opens standard for federated communication.
Historical Milestones
- Predecessors (2007–2014): Its started with RSS then latter attempts at decentralized social networking, such as StatusNet, OpenMicroBlogging, and Pump.io, laid the groundwork for federation protocols.
- W3C Formation (2014–2017): The W3C Social Web Working Group began developing the protocol, then known as ActivityPump.
- W3C Recommendation (January 2018): ActivityPub became an official W3C Recommendation (standard), enabling consistent, secure communication between disparate servers.
- Adoption and Growth (2018–Present): Mastodon the twitter clone microblogging platform adopted ActivityPub, providing the “critical mass” needed for adoption.
- Diversification: Other platforms followed, including PeerTube (video), PixelFed (images), and Lemmy (links).
- #dotcons adoption (2022–2024): Following changes at Twitter (now X), #mainstreaming interest in decentralized alternatives surged. Meta’s Threads began implementing ActivityPub as did WordPress.
The Fediverse is now nearly ten years old and #ActivityPub continues to grow in use as it allows people on one server to #KISS interact seamlessly with people on another for decentralized, “walled garden” free networking.









