Observations:
Today #bigtech social media looks & feels like TV to me. Consume whatever each platform owners' algorithms serve.
#ATProto's ecosystem seems focused on reach & broadcasting. #ActivityPub's ecosystem seems focused on interaction. Is this the diff between #SocialMedia Vs #SocialNetworks? Newschool vs Oldschool Internet?
Would be nice if these #protocols become interoperable. Technically solvable, but I wonder are the 'cultures(?)' interoperable as well? Thoughts?
thanks to the awesome support of 
@steveSteve Bate and 
@mariusormarius the #WordPress #ActivityPub #C2S API support is quite solid now.
It is possible to publish a new post, comment to posts and other comments and to follow others.
https://github.com/Automattic/wordpress-activitypub/pull/2851
@pfefferleMatthias Pfefferle @steveSteve Bate @mariusormarius
This is wonderful! I updated my #ActivityPub #C2S notes with link to the PR..
https://codeberg.org/fediverse/delightful-fediverse-experience/issues/130
thanks to the awesome support of @steveSteve Bate and @mariusormarius the #WordPress #ActivityPub #C2S API support is quite solid now.
It is possible to publish a new post, comment to posts and other comments and to follow others.
https://github.com/Automattic/wordpress-activitypub/pull/2851
Before I drive myself mad and try to build something I'm incapable of…
Has anyone built an #ActivityPub server for embedded devices?
Not a Raspberry Pi, but like one of those tiny ESP32 devices which can run MicroPython or similar.
I built a *full* AP server in around 64KB of PHP
https://gitlab.com/edent/activity-bot/
Now I'm wondering if a tiny sensor could be a fully-fledged ActivityPub node on the Fediverse.
»Connecting the world through thriving online communities« https://blog.joinmastodon.org/2026/02/connecting-the-world-through-thriving-online-communities/?Fedizen.EU #Fedizen #Fediverse #ActivityPub #News
Fireside Fedi 76 - FediVariety Show: Public Code Curtains Up
Special thank you to the team at @FediVariety@mastodon.social ** **!
FediVariety is a European collective of digital activists and researchers dedicated to harnessing (Free) Open Source Software —(F)OSS— for public administration, focusing on the Fediverse. We're generously supported by the NLnet foundation and the SABOA foundation.
🚀 **Watch the full VOD:** tubefree.org/w/wSEDka8cqkJVk...
🔎 **Explore more episodes:** tubefree.org/a/ozoned/video-channels
🔔 Subscribe to the RSS feed so you never miss a future deep‑dive.
📡 **Subscribe via RSS:** tubefree.org/feeds/videos.xml?videoChannelId=5934
🎧 **Podcast feed:** tubefree.org/feeds/podcast/videos.xml?videoChannelId=5934
#FiresideFedi #FiresideChat #Podcast #VideoPodcast #Fediverse #Fedi #ActivityPub #BSKY #DecentralizedSocial #OpenSocialWeb #Community #TechCulture #FutureOfSocial #TechTalk #DevCommunity #CodingFun
3 platforms in the 2 comma club across 1 federated protocol.
Mastodon, Misskey and Pixelfed now have over 1 million people each.
This calls for a celebration 🥳
Right now I like the #indieweb #webmentions / #microformats more than #activitypub / #jsonld, because the author chooses which replies appear below their post. I think it would be better if there was an expectation to regularly validate the webmentions (we have HTTP caching for that), and also for #xhtml instead of html. I’m not familiar with the LD markup languages, but maybe there exists something more interoperable than microformats (with proper URIs for properties).
A good question about this is "why this and not Fedi"
Fedi is fine.
However, it is HEAVYWEIGHT infrastructure.
It's big. It's not cheap to run. Even Misskey/Sharkey/Pleroma/etc. are not cheap to run.
mastodon.social is the default instance. There is no real way around that. People want a default instance.
It is not super seamless to move instances, migration is better than it used to be but far from perfect. It means bringing all your data with you to a new server.
With this... there is no migration, ever again.
With a backend like OrbitDB, you have a distributed storage network that is basically a cockroach.
There will be no "RIP <instance>" it will just be "RIP <home page gateway>". And you can run one yourself or use someone else's. My goal is you can run this on GitHub pages or any static site.
@ElizafoxBiohazardous Catfox so kinda like #IPFS but with changing files...
Heh, heh. Tonight I stumbled upon a hidden little feature in Fedify's CLI.
If you run `fedify nodeinfo mastodon.social -b` you get a cute little ascii art representation of the instance's logo.
Happy to see a bit of fun mixed into these fedi tools!
#Holos will be available on #FDroid soon, and we hope to get more feedback to improve the project. While #Fedilab uses server APIs, here we can do much more to improve your #Fediverse experience with an #ActivityPub server running directly on your device. We already introduced E2EE DMs and personal identity. We will go further with automatic deletion, even at posting level. You decide the availability of a message. We will also work on interaction controls from #GoToSocial.
Clicked through on that @ naturzukunft2026 link for some reason
"The spec is ActivityPub, but federation is unfortunately Mastodon."
No
#ActivityPub is a protocol
It requires some sort of implementation via software into some sort of distribution/app
Mastodon (for one) is only *one* distribution/app
There are others
These others may
--> or may not <--
"federate" with each other to varying degrees
They are all *different* and "varying" implementations of the ActivityPub protocol
I don't know why this is so hard to understand, but it sure seems to be...
@FinchHavenFinchHaven sfba 
@strypey
I do not think that 
@naturzukunft2026naturzukunft misunderstands this.
There's a difference between #ActivityPub the protocol and #fediverse the on-the-wire reality, and in the latter #Mastodon is the post-facto interoperability leader.
For there to be interoperabiity in a particular domain there needs to be agreement on data formats and msg exchanges, and the specs don't provide full coverage nor clear guidance on this. Though #ActivityStreams has a section on use cases it was designed to handle, they aren't fully specified.
Of course it is perfectly fine, and highly encouraged to model a domain in the best possible way, but you won't be "part of the fediverse" until you implement enough of the post-facto Mastodon microblogging interop quirks.
We don't have a good ecosystem-level extension approach, and the #FEP constitutes a best-effort. A bandaid that allows to present a best-practice in hopes it gets further adoption.
I'm not sure that JSON-LD offers solace though.
"The Fediverse today is dominated by microblogging clones."
@naturzukunft2026naturzukunft, 2026
https://fediforum.org/2026-03-growing-open-social-web/
... because Mastodon is what people use the most (really it's the only "microblogging" app, and only by default)
"... we need domain-specific applications that leverage ActivityPub’s full semantic potential — not just status updates, but recipes, events, reviews, collaborative documents ..."
We've had most of these for years. Mobilizon, NeoDB, NextCloud, etc.
(1/3)
Clicked through on that @ naturzukunft2026 link for some reason
"The spec is ActivityPub, but federation is unfortunately Mastodon."
No
#ActivityPub is a protocol
It requires some sort of implementation via software into some sort of distribution/app
Mastodon (for one) is only *one* distribution/app
There are others
These others may
--> or may not <--
"federate" with each other to varying degrees
They are all *different* and "varying" implementations of the ActivityPub protocol
I don't know why this is so hard to understand, but it sure seems to be...
There is some terminology used by 
@HolosSocial that may lead to confusion and needs clarification.
The term "full #ActivityPub server" seems to refer to a full server-to-server (S2S) implementation and then hosted client-side, which communicates with the Holos relay server through websockets in order to be able to federate. You might call it a "full server on the client" implementation.
But that is different than what the spec calls a "ActivityPub conformant Federated Server" which also implements the client-to-server (C2S) Social API. I don't see C2S mentioned, and perhaps 
@appsFedilab Apps can improve the docs here to avoid confusions.
@i47iR. P. Scott @HolosSocial @appsFedilab Apps
PS. I track a list of #ActivityPub #C2S implementations and didn't add #Holos till now. If I should add it, pleas let me know, or comment directly to the issue.
https://codeberg.org/fediverse/delightful-fediverse-apps/issues/130
The fediverse now has a mobile-first personal server called Holos by @HolosSocial (via @appsFedilab Apps). It's a full ActivityPub server that runs on your Android device (iOS coming soon). You own your identity with a custom domain and your followers live on your device.
Project URL: https://holos.social
Key features:
✅ Your server on your phone – Your identity, keys, and followers live on your device, not a giant shared server.
✅ Custom domain identity – Permanently own your handle (@you@yourname.com) and take it anywhere.
✅ True E2EE for DMs – Real end-to-end encryption for private conversations, a major privacy upgrade.
✅ Relay-based connectivity – Connects to the wider fediverse via relays, so a personal server is practical on mobile.
Open source, privacy-focused, and built to give you real ownership in the fediverse. The Android version is available now.
Donations:
https://fedilab.app/page/donations/
Open Collective:
https://opencollective.com/fedilab
#HolosSocial #Fediverse #ActivityPub #E2EE #Privacy #Android #Fedilab #OpenSource
There is some terminology used by @HolosSocial that may lead to confusion and needs clarification.
The term "full #ActivityPub server" seems to refer to a full server-to-server (S2S) implementation and then hosted client-side, which communicates with the Holos relay server through websockets in order to be able to federate. You might call it a "full server on the client" implementation.
But that is different than what the spec calls a "ActivityPub conformant Federated Server" which also implements the client-to-server (C2S) Social API. I don't see C2S mentioned, and perhaps @appsFedilab Apps can improve the docs here to avoid confusions.
The fediverse now has a mobile-first personal server called Holos by @HolosSocial (via @appsFedilab Apps). It's a full ActivityPub server that runs on your Android device (iOS coming soon). You own your identity with a custom domain and your followers live on your device.
Project URL: https://holos.social
Key features:
✅ Your server on your phone – Your identity, keys, and followers live on your device, not a giant shared server.
✅ Custom domain identity – Permanently own your handle (@you@yourname.com) and take it anywhere.
✅ True E2EE for DMs – Real end-to-end encryption for private conversations, a major privacy upgrade.
✅ Relay-based connectivity – Connects to the wider fediverse via relays, so a personal server is practical on mobile.
Open source, privacy-focused, and built to give you real ownership in the fediverse. The Android version is available now.
Donations:
https://fedilab.app/page/donations/
Open Collective:
https://opencollective.com/fedilab
#HolosSocial #Fediverse #ActivityPub #E2EE #Privacy #Android #Fedilab #OpenSource
In #ActivityPub, once a post is federated, you lose control over how remote instances handle interactions on it. Some servers like #GoToSocial are working on interaction controls, but non-compatible instances simply ignore your rules.
With #HolosSocial, we're considering a "safe mode" available at publishing time. Your post would only be delivered to followers on instances that respect interaction controls. Not enabled by default, but there for those who need it.
@Longplay_Games@mastodon.gamedev.place I apparently have such a bad eye for art that I can't tell.
#Storyden has a 2025 closed issue on #ActivityPub with "not planned".
https://github.com/Southclaws/storyden/issues/39
You might start a discussion to report on your Discord chat and perhaps they'll reconsider.. https://github.com/Southclaws/storyden/discussions
Just found out about storyden.org/ .
I joined their Discord to ask them to consider #ActivityPub support. They haven't, they don't know much about it, but I'm sure someone could help if they're interesetd.
Barney dropped a line to me though that 100% resonates with us on the #Fediverse and what they're going for.
"Knowledge gardens, not content farms."
ONE OF US! 😁
if i have my own blog and wanna integrate #activitypub to it. can the blog itself be considered as "application" actor type or "person"??????????
(assuming it's a single person's blog)
We talk about #HolosSocial forgetting some of you might not know this project.
#Holos is a full ActivityPub server running on your device. Currently on Android, next on iOS.
We already introduced #E2EE DMs and #ActivityPub identity through custom domains. You own your followers, your keys, and your identity. Relays are just infrastructure.
On the footer of https://holos.social we added pages explaining the project. Have a look!
Mastodon: @HolosSocial Don't hesitate to share
The fediverse now has a TikTok alternative called Loops by 
@dansup. Open source, federated via ActivityPub, funded by NLnet and community donations instead of venture capital. You own your content and can self host. Beta is live and the iOS app just hit the App Store.
#Loops #JoinLoops #Fediverse #ActivityPub #OpenSource #ShortVideo #TikTokAlternative #TikTok
It's probably less of a problem now that the fediverse is much bigger (than it was 5 years ago). But one of the things I've heard puts newbies off alternative social apps/ networks is too much meta-discussion about development and deployment of the apps/ networks themselves.
Maybe we could agree on a standard way of tagging this stuff (eg #DevMeta)? Then the DevMeta tag could be filtered out by default for newbies.
(1/3)
**Decentralized Dominance: The Unbribed Power of Webmentions**
I've been a vocal advocate for Webmentions for a while - and I'm here to tell you that this game-changing technology is not just a nicety, but a necessity.
The fundamentals are crystal clear: take control of your online presence, ditch the middlemen, and shatter the shackles of Big Tech's stranglehold. It's time to rewrite the rules and reclaim your digital sovereignty.
Let's cut to the chase with an example that'll leave you breathless: imagine Asuka stumbling upon a scorching article on Shinji's site at https://Shinji.com/article. She fires off a comment that'd make a thousand lesser bloggers green with envy - but instead of relying on some soulless commenting system, she takes it to the next level by sending a Webmention directly to Shinji's site.
The implications are staggering: when both parties support Webmentions, they're essentially saying, "You can have my comment, right now." The source URL (https://Asuka.com/comment) and target URL (https://Shinji.com/article) are etched in stone - no more third-party intermediaries, no more social media login hoops to jump through. Just the raw power of the Web.
Now, I know what you're thinking: "But isn't this just a fancy alternative to ActivityPub?" Ah, friend, you'd be wrong. Dead wrong. #ActivityPub is a Byzantine nightmare that'll leave your head spinning with concepts like actors, relays, followers, and more. Webmentions, on the other hand, are a elegant, peer-to-peer solution that doesn't require any of that mumbo-jumbo.
And let's not forget the sheer flexibility of Microformats - you can use Webmentions to share anything from likes to RSVPs, media, locations, and even events. The possibilities are endless.
Don't be held hostage by the status quo. Join the Indieweb and take control of your online destiny once and for all.
I'm thinking in adding #ONI proxyUrl support in the frontend. 
Currently if a request to a remote #ActivityPub object fails - either due to CORS, or because of authorized fetch - I just display a fallback link to it.
I'm wondering if I can do a two step approach, if the request to the resource fails with 401-403 (for secure fetch) or 400 (for CORS failures) I try to redirect the request through the proxyUrl mechanism.
Only if that fails too, I fallback to something else.
How exactly are #Mastodon and #Bookwyrm interoperable? What #data or interactions can flow between the two via #ActivityPub?
Recently, there was a question by 
@taylorlorenz about how you explain the Fediverse to someone who doesn't use it.
And usually, what we tend to do is we talk about servers and decentralisation and federation and ActivityPub and all these highly technical concepts.
I've been thinking about it, and all that technical stuff is really impressive work by people far more clever than I'll ever be.
But for me, that technology is a facilitating thing. It's like trying to describe how a bicycle works, rather than why you ride it.
Instead, what the Fediverse is, is a place to have conversations online without algorithms, AI, and ads getting in the way.
Which is increasingly a rare thing online.
Almost the entirety of the internet, from SEO on the web to YouTube to TikTok to Spotify to Instagram and X and Facebook, has been turned into a race to game an algorithm designed to sell ads.
What makes the Fedi unique is that it's not that.
And I suspect if you're trying to persuade someone to try Mastodon (or Lemmy, or Pixelfed, or GtS, etc), you'll get a lot further explaining it as algorithm-free, ad-free, AI-free conversations, rather than trying to describe a decentralised protocol.
#Fediverse #Mastodon #ActivityPub
I can say the #Fediverse is a different place than any other social media platform I have been on. I've been here since 2022. When my self-hosted instance went down for a couple days, I didn't yearn for social media like a drug. I wondered how certain people's cats were, one person had a mother in the hospital, someone was getting a new job, one had the blues, etc, etc. I missed people more than viralness of a platform. #Mastodon #ActivityPub Thank you for being my Old Friends.
There's a lot of energy on the #Fediverse right now to discuss/find a #Federated alternative to #Discord using #ActivityPub.
@strypey suggested that I put this out there to anyone who's thinking about it. We could probably rebuild most of Discord's features as an #Emissary inbox without doing a lot of back end code.
I'm too swamped to start on this right now. But if you're a great HTML+CSS designer, I'm able to give some time to a team who wants to take this on.
#Roomy currently based on AT Proto but looking to add #ActivityPub soon
https://itsfoss.com/roomy-discord-alternative/
There's a lot of energy on the #Fediverse right now to discuss/find a #Federated alternative to #Discord using #ActivityPub.
@strypey suggested that I put this out there to anyone who's thinking about it. We could probably rebuild most of Discord's features as an #Emissary inbox without doing a lot of back end code.
I'm too swamped to start on this right now. But if you're a great HTML+CSS designer, I'm able to give some time to a team who wants to take this on.
Servers
- Stegodon v1.7.1
- Hollo v0.7.2
- Manyfold v0.132.1
- Mbin v1.9.1
- tootik v0.21.0
- Mitra v4.18.0
- ActivityPub for WordPress v7.9.1
- flohmarkt v0.14.4
- PieFed v1.6.4
- Trunk & Tidbits, January 2026 (Mastodon)
- OpenSimulator ActivityPub Bridge
Clients
- Fedilab v3.36.1
- toot v0.51.1
- tooi v0.21.0
- Jerboa v0.0.85
- Interstellar v0.11.2
- Pixelix v4.3.0
- Fedi Reader: A link-focused Mastodon news reader for iOS and macOS
Tools and Plugins
- ap-thread-reader: ActivityPub-compatible Thread Reader (not only for Mastodon)
For developers
- Progress Report - February 2026 (GoActivityPub)
Articles
- On fediverse content warnings and filters
- Trusting Trust in the Fediverse
- Adding Fediverse Comments to a Pelican Blog
-----
#WeekInFediverse #Fediverse #ActivityPub
Previous edition: https://mitra.social/objects/019c3449-e714-29e9-b9f6-03cc6804b4aa
These days I have seed and flavorful vegetables on my mind. I'm grateful to be part of an international community with that passion. One of the places on the internet I learn the most these days is a #Discourse #forum dedicated to that topic and I wish it could federate with Mastodon and similar networks, so the conversations could take place here too. Atm you need a 500$ business plan to integrate #ActivityPub plugin.
With #HolosDiscover we checked multiple criteria before indexing: "indexable" enabled, account not locked, no #nobot or #noindex in bio, not in opted-out list, only public posts. Every deletion, edit or block was processed instantly via #ActivityPub.
Google uses that same "indexable" flag but ignores everything else, keeps deleted content cached for weeks.
We shut it down after pushback. Was that the right call? Don't hesitate to share, this concerns the whole Fediverse.
After shutting down #HolosDiscover, we're rethinking the approach with #HolosIndex: users explicitly opt in by adding #HolosIndex to their bio with interest tags, then submit their profile. No assumptions, no default settings.
This will power interest-based discovery across the #Fediverse, helping people find each other through shared interests. Still all through #ActivityPub of course, with real-time deletions and updates.
are there any fediverse projects using more than one type of federation?
what are some good resources for implementing activitypub validly?
what languages should i learn?
what are good ways to test web application security on the cheap before deployment?
anything more i should be worried about?
i'm good at c, python and that's about it.
#ActivityPub ✅ #jsonld 🤷♀️ Why? 🤪
Hopefully the SocialWG will adopt a real schema language. 🙏
@eyeintheskyThe Eye I am genuinely curious. What do you mean by a "real" schema language? What criteria should it meet?
More specifically, what would constitute successful interoperability for #ActivityPub in line with the aims of #SocialWeb?
#JSONLD is not a schema language. It is used to serialise #ActivityStreams as the primary vocab for exchanging social activities, providing a foundation, and leaves room for extensibility for broad human needs to express social matters.
Never before has it been this easy to leverage the fediverse across the web.
With 
@webintents and 
@socialwebgraph, you will be unstoppable 🚀
Available Soon.
#WebIntents #SocialWebGraph #Fediverse #ActivityPub #ActivityIntents
Hello World!
We're building a social web alternative to open graph, powered by @webintents and 
@fedidb
The website and documentation will be published soon, stay tuned 🚀
This morning I promoted nolto.social, a platform that was made - at least I thought so, to be a Fediverse based alternative to LinkedIn. As I'm getting more and more annoyed by LinkedIn and all the useless posts over there, I was happy to find an independent alternative.
nolto.social still worked this morning, but when I came back later; i found the project deleted and at least when you are viewing the website from your smartphone, you see a message from the developer of nolto.social where he states that this project was never meant to grow. Obviously this was just a one person project who became overwhelmed by the success of the platform and by the fact, that companies started creating profiles and nearly 1000 people joined within a short time period. But now it seems that this project ran out of control and the maintainer decided to pull the emergency break. He is also talking about negative feedback he received for the platform and even personal harrassment.
It is sad that a promising project like this had been terminated, but I can understand what made the maintainer doing so. Managing a business platform can become a fulltime job quite fast and it also requires technical ressources and money to run these resources.
I firmly believe that we need an alternative to LinkedIn. I believe that people don't want all this bullshit posts just created to please the algorithm and to generate likes and feedback. And I believe that people would like a business network which is nothing else than a business network - no space for bursting egos and self promotion, but a space for connection and serious discussion.
Fediverse would be the ideal space for this. But as we know, if business networks are successful, they require more and more attention, more ressources, more money. And at this is the problem. When you need money to run your social network, it's tempting to ask yourself how you could generate money by using the ressources you already have, which are user data...
I don't see a solution for this now, just sharing some thoughts.
pack-mastodon v0.1.0 is now available on Ramble!
Deploy Mastodon, a self-hosted ActivityPub social network, to HashiCorp Nomad
Nice! I have queued this up for inclusion in the delightful fediverse experience curated list.
https://delightful.coding.social/delightful-fediverse-experience
pack-mastodon v0.1.0 is now available on Ramble!
Deploy Mastodon, a self-hosted ActivityPub social network, to HashiCorp Nomad
One option for events in Fediverse: https://gath.io/
#ActivityPub ✅ #jsonld 🤷♀️ Why? 🤪
Hopefully the SocialWG will adopt a real schema language. 🙏
Hello 
@evanEvan Prodromou and 
@bifurcationRichard Barnes .. a question.
For inclusion of #ActivityPub information resources on the delightful-fediverse-development curated list there is this (now expired) #IETF draft exploring #MIMI / #MLS versus AP. I find this draft to be well-written and informative, and thus the draft possibly a candidate for inclusion for people as additional background reading to the #SocialCG work on MLS. Unless there are so many changes since the creation of the draft that it may raise confusion, and should not be included. What is your opinion here?
https://ietf-wg-mimi.github.io/mimi-arch/draft-ietf-mimi-arch.html
I would like to suggest that folks in #Canada who appreciate the #fediverse and #activitypub learn about and thank @dansup, who invented, developed & maintained 
@pixelfed for YEARS even while the user base was like in the few hundreds.
Now he's behind 
@loops and @fedidb as well
His dedication to the open web is so criminally underrated in our country, even though he has been on the global cutting edge of the #digitalsovereignty movement we're seeing in #cdnpoli for the better part of a decade.
Jupiter Rowland @jupiter_rowland@hub.netzgemeinde.eu
Communication between the Fediverse and OpenSim is being worked on again; CW: long (over 600 characters), Fediverse meta, Fediverse-beyond-Mastodon meta
Read more →Yay, Spritely Institute (
@spritelyThe Spritely Institute) presents what the future of distributed social networks might look like:
- https://fosdem.org/2026/schedule/event/HVJRNV-how_to_level_up_the_fediverse/
Decentralized social networks of consent.
For more information read https://spritely.institute
#spritely #activitypub #socialMedia #ocapn #distributed #consent #fediverse
@andycarolanAndy Carolan 
did it again and now #FedBOX, the generic #ActivityPub server, has a fresh of the press logo. :) Thank you Andy! 🥳
I'm playing around with Offer activities in Fedify. The AP Vocab provides this, easy peasy.
✅ Alice OFFERS Book to Bob
✅ Bob ACCEPTS Alice's OFFER
Or:
✅ Bob OFFERS Rotten Tomato to Alice
❌ Alice REJECTS Bob's OFFER
----------------
But I'm not clear if this is right:
❓Alice ANNOUNCES OFFER of Labubu to Followers?
❓Bob OFFERS $10 for Labubu to Alice?
❓ Alice ACCEPTS Bob's OFFER of $10 for Labubu?
✅ Alice OFFERS Labubu to Bob
✅ Bob ACCEPTS Labubu
@
