Activity Pub: Can I join a PeerTube or Mastodon server using a Lemmy account?
Hey, I am currently trying to understand a bit better what the Activity Pub allows and what it doesn't as I am preparing a presentation on that topic.
On Lemmy I can join other servers without having to recreate an account. Does that also work for across Activity Pub supporting software? Could I join a PeerTube page and then post there? Could I upload videos? Could I join Mastodon or Pixelfed and post images?
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figura di merda
Più che un annuncio è uno sfogo, in seguito a una figuraccia fatta per colpa di altri.
Il primo dicembre del 2022, un podcast italiano aveva pubblicato un’intervista su di noi e, in genere, su HIV.
Solo mettendo mano ai vecchi articoli per migliorare l’organizzazione del blog, però, ci siamo resi conto che al posto del podcast sull’AIDS c’era “focacce e pizze”.
Gli autori del podcast non ci hanno avvertito della modifica e questo non è corretto.
Nessuna accusa, non sappiamo come mai sia accaduto. Ma la cosa ci ha dato fastidio. Ancora una volta ripetiamo: interviste, inviti, ma dettiamo noi le condizioni.
DDR4 costs soar as manufacturers pull the plug — panic buying and stockpiling impact DDR4 spot pricing as supply dwindles
DDR4 costs soar as manufacturers pull the plug — panic buying and stockpiling impact DDR4 spot pricing as supply dwindles
With fabs chasing AI profits, DDR4 supply is throttled.Luke James (Tom's Hardware)
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Helen Clark, John Key at China military parade along with Putin, Kim
Helen Clark, John Key at China military parade along with Putin, Kim
The former prime ministers' attendance at the event - which also featured Kim Jong Un and Vladimir Putin - has raised eyebrows.RNZ News (RNZ)
Microsoft, Linode, warn of cloud latency spikes due to Middle East submarine cable problems
Microsoft, Linode, warn of cloud latency spikes due to Middle East submarine cable problems
Asia In Brief: PLUS: Lenovo to sell bonkers clip-on-screen; AWS NZ rumblings; Google helps catch South Korean phishSimon Sharwood (The Register)
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New Zealand income growth one of the worst in the world
New Zealand income growth one of the worst in the world
The post-Covid recession has pushed our wage growth to near the bottom of global rankings.Susan Edmunds (RNZ)
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NZ First commits to Trumpian campaign, details flexible
NZ First commits to Trumpian campaign, details flexible
Analysis: While party loyalists debate policy direction and outreach, leaders know so-called culture wars offer much-needed momentum.Fox Meyer (Newsroom)
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I don’t want to be brutal or anything but this is a really horrible way to murder 4 people, and the only fitting punishment is to execute her by mushroom poisoning. Notice the timeline it took the survivor 7 weeks to recover, and those who died it was over a week of hospitalized pain and organ failure.
Also her estranged husband is kind of complicit? He suspected attempted poisoning twice before and declined the lunch? But you don’t warn your parents? That might be hard to live with.
Benvenuti in Iowa, nella mega-fermata per camionisti all'ombra dell'arcobaleno reticolato - Il blog di Jacopo Ranieri
Benvenuti in Iowa, nella mega-fermata per camionisti all'ombra dell'arcobaleno reticolato - Il blog di Jacopo Ranieri
Quell’ultima consegna, la mansione necessaria prima di poter tornare liberi e selezionare sul navigatore l’agognata via di casa.Jacopo (Il blog di Jacopo Ranieri)
‘Tip of the methane iceberg’: 130,000 coal boreholes must be audited after toxic leaks in Queensland, experts say
‘Tip of the methane iceberg’: 130,000 coal boreholes must be audited after toxic leaks in Queensland, experts say
Concerns abandoned coal boreholes in Queensland and NSW could be emitting ‘equivalent of 65m cars’ worth of methaneGraham Readfearn (The Guardian)
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How Much Moon You Got?
This is what the whole 800mm gets me out of the RF 200-800.
To the astonishment of people who have never tried to take a picture straight at the moon before, this is only a 1/800 sec exposure at ISO-100. The normal rules about nighttime sky photography don't apply for the moon on a clear night, because it's lit by direct sunlight.
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[Patch Notes] 0.3.0b Hotfix 3
0.3.0b Hotfix 3
- Reduced the damage for Damage over Time Ground Effects from most Abyss Monsters.
- Reduced the damage from the Blackblooded Cretin's on death Remnants.
- Temporarily disabled the Undying Will Abyss modifiers from functioning on Tamed Beasts.
- Fixed a bug where monsters could desync near some endgame boss arenas.
- Fixed some cases where the Vulkan Renderer could crash resulting in a device lost error.
- Fixed a client crash on Gamepad that could occur when placing items into the crafting slot of the Essence Stash Tab.
- Fixed an instance crash.
Early Access Patch Notes - 0.3.0b Hotfix 3 - Forum - Path of Exile
Path of Exile is a free online-only action RPG under development by Grinding Gear Games in New Zealand.Path of Exile
[Announcement] Submit Your Build for Build of the Week
It's nearly time to kick off a new season of Build of the Week for Path of Exile 2: The Third Edict, but we need your help! If you reckon your build is up to snuff, submit a guide and win a Hinekora t-shirt if it's selected.
How to Submit Your Build
To submit your build for Build of the Week, please write or record a guide and post it on our Path of Exile 2 Builds forum.
If you'd like some inspiration, or would like to see some cool builds from earlier Path of Exile 2 patches, check out a couple of our previous build showcases below or the honourable mentions in this thread.
Video: Path of Exile 2 Build Showcase - Struth Gaming's Crossbow Warrior
Video: Path of Exile 2 Build Showcase - DeadRabbit's Mjölner Warp Titan
Early Access Announcements - Submit Your Build for Build of the Week - Forum - Path of Exile
Path of Exile is a free online-only action RPG under development by Grinding Gear Games in New Zealand.Path of Exile
Green Park
Photographer: @FishFinss@lemmy.world
A photo I took while walking around a park that I thought turned out very nicely!
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Malware found hidden in image files, can dodge antivirus detection entirely — VirusTotal discovers undetected SVG phishing campaign
Scalable vector graphics (.svg) files are lightweight, XML-based images that render at any resolution. They’re usually harmless, but they can also contain active code, and hackers appear to be relying on them more often as a means to stealthily deliver malware.
Malware found hidden in image files, can dodge antivirus detection entirely — VirusTotal discovers undetected SVG phishing campaign
A new report links over 500 weaponized SVGs to a phishing campaign that spoofed a Colombian government portal.Luke James (Tom's Hardware)
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Green Park
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Rs and Ls are tricky
List of 30 M3U Link Random host working for free - IPTV
List of 30 M3U Link Random host working for free - IPTV 2/9/2025
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iptvregion.eu.org/2025/09/list…
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join to us : linktr.ee/iptvregion
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List of 30 M3U Link Random host working for free - IPxTV 2/9/2025
http://newkalaplay.xyz:8080/get.php?username=979800516tv&password=47c9zi&type=m3u_plus http://smrttv2410.xyz:8080/get.php?username=fthh7161&password=NvJ5p5XGr7mA&type=m3u_plus&output=ts http://grc22…IPTV region (IPTV Region free M3U)
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“Finding London’s Secret Games Consoles” — “Alla Ricerca delle Console da Gioco Segrete di Londra”
Ieri dicevo “le sale giochi“, e oggi… ecco, ancora una volta basta solo che guardo una cosa e subito l’algoritmo si accede. O forse no, perché il video di stasera è appena uscito ed è di un canale che seguo, quindi mi sarebbe arrivato comunque, ma… a Londra (città altrimenti decadente, per cui è parecchio […]
octospacc.altervista.org/2025/…
“Finding London’s Secret Games Consoles” — “Alla Ricerca delle Console da Gioco Segrete di Londra”
youtube.com/watch?v=G_NeAJZyrj…Ieri dicevo “le sale giochi“, e oggi… ecco, ancora una volta basta solo che guardo una cosa e subito l’algoritmo si accende. O forse no, perché il video di stasera è appena uscito ed è di un canale che seguo, quindi mi sarebbe arrivato comunque, ma… a Londra (città altrimenti decadente, per cui è parecchio bizzarro) hanno aperto la sala giochi gigante del secolo; e non solo. 🔥
In effetti il video mostra 2 cose diverse, che tecnicamente non ci azzeccano niente, ma a quanto pare questa è una serie dove il tizio cerca momenti gaming nel Regno Unito, e andando a Londra in una botta non avrebbe fatto 2 video, quindi ecco: da una parte un’esibizione artistica di retrogame parecchio originale — e infatti, l’ha fatta un canadese, non un british, ops — e però poi… un museo riconvertito, appunto (e non riesco a crederci neanche io dicendo questa frase), in una sala giochi che, per giunta, non è affatto una merdata, bensì un’offerta convenientissima… 18 sterline e hai un abbonamento per l’intera sala, (a quanto pare) senza limiti, per un fottuto anno! E infatti, data una simile proposta, il posto è abbastanza pieno di giocatori… (immagino la puzza.) 😤
Si chiama PWRUP, che nome originale. Ho dovuto riascoltare, comunque, perché mi sembrava di aver capito troppo bello per aver capito giusto… ma no, è proprio così: soli 18 euro, e ci sono sia un’infinità di retroconsole che le postazioni per giocare ad Halo in LAN in 16 (a caso, boh). L’unica palla è che l’iniziativa è comunque un esperimento, quindi chissà quanto durerà (anche perché non penso abbiano intenzione di riciclare per sempre un’intera parte dello Science Museum in una sala giochi, nonostante sarebbe ideale), ma… per il momento, il gaming è realissimo. Peccato solo che questa roba si trovi sull’isola del fallimento e della tortura, e non sulla penisola-del-fallimento-però-almeno-ci-sono-cosine-belle dove invece vivo io… niente gaming da queste parti, via, se va bene ora si dorme e se va male manco quello. (Ah, e speriamo che i bimbi lì non spacchino la roba, comunque.) 👌
#gaming #London #Londra #PWRUP #RetroDodo #retrogames #retrogaming #SaleGiochi #ScienceMuseum
- YouTube
Profitez des vidéos et de la musique que vous aimez, mettez en ligne des contenus originaux, et partagez-les avec vos amis, vos proches et le monde entier.www.youtube.com
Sea of people march across Sydney Harbour Bridge calling for an end to killing in Gaza
Sea of people march across Sydney Harbour Bridge calling for an end to killing in Gaza
NSW police estimate 90,000 walked despite force and premier opposing rally, while Palestine Action Group claims up to 300,000 peacefully protestedJordyn Beazley (The Guardian)
Complete and utter pathetic losers people like you are to think waving signs and chanting slogans, and high-fives for feel-good protests do anything useful other than self gratification.
Meanwhile Germany announced yesterday that it would stop all weapons deliveries to Israel. That is "The safe existence of Israel is part of the Reason Germany exists"-Germany stopping weapons deliveries. That would not have happened without public protests that shifted public opinion.
Complete and utter pathetic people like you are to think writing online comments about how everything is pointless makes them somehow appear cleverer or wiser than the people at least carrying their dissent to the streets. Go away you nihilistic troll.
It's now been several weeks, and all this protest did was allow dipshits like you to think you made a difference and pat yourself on the back. Meanwhile one Palestinian child is killed every hour
This enormous protest did fuck all.
Opinion that this is Republican playbook: 18 Major Events During Adolf Hitler's Rise to Power
As per article that I wanted to highlight
- 2 - Hitler appealed to the masses by presenting scapegoats for their problems
- Anti-Jewish actions gained momentum during the depression
- The Nazis achieve a plurality in the Reichstag
- Hitler moves to consolidate political power through the passing of the Enabling Act, granting temporary authority to the Chancellor and the President to enact laws exclusive of the democratic process
- Hitler rules by decree for the next four years
- Nazification of the civil service was critical to Hitler’s power
- The Nazi “co-ordination” effort to control the minds of Germans
18 Major Events During Adolf Hitler's Rise to Power - History Collection
Born in Austria-Hungary on April 20, 1889, the man who became the Fuhrer experienced a difficult and somewhat peripatetic childhood, beaten by his father, doted on by his mother, and after the death of a younger brother from measles became withdrawn …History Collection
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The climate solution both the right and the left can get behind | We’re beyond Mel Gibson’s Mad Max era. We no longer need oil to make it through the apocalypse
Rightwing preppers should be the biggest boosters of this climate solution
We’re beyond Mel Gibson’s Mad Max era. We no longer need oil to make it through the apocalypseBill McKibben (The Guardian)
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Not sure where they are getting the idea that the right supports solar.
cnbc.com/2025/08/20/trump-says…
Trump says U.S. will not approve solar or wind power projects
The president's comment comes after the administration tightened federal permitting for renewables last month.Spencer Kimball (CNBC)
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A Houthi drone strikes an Israeli airport in a rare hit as Israel steps up Gaza City attacks
A drone fired by Yemen’s Houthi rebels breached Israel’s multilayered air defenses on Sunday and slammed into the country’s southern airport, the Israeli military said, blowing out glass windows, wounding one person and briefly shutting down commercial airspace.
The damage to Ramon Airport appeared limited and flights resumed within hours. The Houthis claimed responsibility for the strike.
The attack follows Israeli strikes on Yemen’s rebel-held capital that killed the Houthi prime minister and other top officials in a major escalation of the nearly 2-year-old conflict between Israel and the Iran-backed militant group.
A Houthi drone strikes an Israeli airport in a rare hit as Israel steps up Gaza City attacks - KOB.com
A drone launched by Yemen's Houthi group has hit Israel's southern airport, closing airspace and halting flights, according to the Israeli military.KOB TV
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What to expect from Apple's 'awe dropping' September 9 event
What to expect from Apple's 'awe dropping' September 9 event
New iPhones 17 series, new Apple Watch, new AirPods Pro 3. Apple's all-important fall event is now just days away, so let's take a look at what's coming....Ivan (GSMArena)
AI shakes up the call center industry, but some tasks are still better left to the humans
AI shakes up the call center industry, but some tasks are still better left to the humans
Armen Kirakosian remembers the frustrations of his first job as a call center agent nearly 10 years ago: the aggravated customers, the constant searching through menus for information and the notes he had to physically write for each call he handled.Ken Sweet (Tech Xplore)
Microsoft says Azure affected after cables cut in the Red Sea
Microsoft says Azure affected after cables cut in the Red Sea | TechCrunch
It's not clear who cut the cables or why.Anthony Ha (TechCrunch)
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AI has sparked hunger strikes outside the offices of Anthropic and Google DeepMind
Hi, my name is Denys Sheremet, and I've joined Michaël Trazzi on a hunger strike outside the offices of the AI company Google DeepMind in London. At the same time Guido Reichstadter is on hunger strike outside the AI company Anthropic in San Francisco.Why am I here? We are in an emergency. Google DeepMind, Anthropic and other AI companies are racing to create uncontrollable AI systems that can do anything humans can do. Experts have repeatedly warned us that this puts our lives and well-being at risk, as well as the lives and well-being of our loved ones.
Alarm bells have now been rung by Nobel Prize winners, top scientists and engineers. Thousands of them, including Google DeepMind CEO Demis Hassabis, have signed a letter stating "Mitigating the risk of extinction from AI should be a global priority".
This is an emergency, and all of us who realize it bear serious responsibility to ensure the public is made aware of the danger. How can we expect our communities to act appropriately if we will not even say it is an emergency, or act like it ourselves?
I am calling on DeepMind’s management, directors and employees to do everything in their power to stop the race to ever more powerful general artificial intelligence which threatens human extinction. More concretely, I ask Demis Hassabis to publicly state that DeepMind will halt the development of frontier AI models if all the other major AI companies agree to do so.
I will stay here for one to three weeks unless Google acts.
Hi, my name's Michaël Trazzi, and I'm outside the offices of the AI company Google DeepMind right now because we are in an emergency.I am here in support of Guido Reichstadter, who is also on hunger strike in front of the office of the AI company Anthropic.
DeepMind, Anthropic and other AI companies are racing to create ever more powerful AI systems. Experts are warning us that this race to ever more powerful artificial general intelligence puts our lives and well being at risk, as well as the lives and well being of our loved ones.
I am calling on DeepMind’s management, directors and employees to do everything in their power to stop the race to ever more powerful general artificial intelligence which threatens human extinction.
More concretely, I ask Demis Hassabis to publicly state that DeepMind will halt the development of frontier AI models if all the other major AI companies agree to do so.
Hi, my name's Guido Reichstadter, and I'm on hunger strike outside the offices of the AI company Anthropic right now because we are in an emergency. Anthropic and other AI companies are racing to create ever more powerful AI systems. These AI's are being used to inflict serious harm on our society today and threaten to inflict increasingly greater damage tomorrow. Experts are warning us that this race to ever more powerful artificial general intelligence puts our lives and well being at risk, as well as the lives and well being of our loved ones. They are warning us that the creation of extremely powerful AI threatens to destroy life on Earth. Let us take these warnings seriously. The AI companies' race is rapidly driving us to a point of no return. This race must stop now, and it is the responsibility of all of us to make sure that it does.I am calling on Anthropic's management, directors and employees to immediately stop their reckless actions which are harming our society and to work to remediate the harm that has already been caused. I am calling on them to do everything in their power to stop the race to ever more powerful general artificial intelligence which threatens to cause catastrophic harm, and to fulfill their responsibility to ensure that our society is made aware of the urgent and extreme danger that the AI race puts us in.
Likewise I'm calling on everyone who understands the risk and harm that the AI companies' actions subject us to speak the truth with courage. We are in an emergency. Let us act as if this emergency is real.
Guido Reichstadter on X/Twitter.
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GrapheneOS calls out Google for their recent actions
cross-posted from: programming.dev/post/37055001
GrapheneOS Reply on X/Twitter.
GrapheneOS calls out Google for their recent actions
::: spoiler Comments
- Hacker News;
- Reddit.
:::GrapheneOS Reply on X/Twitter.
(Main Post) Sameer Samat on X/Twitter.
GPT-4V shows human-like social perceptual capabilities at phenomenological and neural levels
Humans navigate the social world by rapidly perceiving social features from other people and their interaction. Recently, large-language models (LLMs) have achieved high-level visual capabilities for detailed object and scene content recognition and description. This raises the question whether LLMs can infer complex social information from images and videos, and whether the high-dimensional structure of the feature annotations aligns with that of humans. We collected evaluations for 138 social features from GPT-4V for images (N = 468) and videos (N = 234) that are derived from social movie scenes. These evaluations were compared with human evaluations (N = 2,254). The comparisons established that GPT-4V can achieve human-like capabilities at annotating individual social features. The GPT-4V social feature annotations also express similar structural representation compared to the human social perceptual structure (i.e., similar correlation matrix over all social feature annotations). Finally, we modeled hemodynamic responses (N = 97) to viewing socioemotional movie clips with feature annotations by human observers and GPT-4V. These results demonstrated that GPT-4V based stimulus models can also reveal the social perceptual network in the human brain highly similar to the stimulus models based on human annotations. These human-like annotation capabilities of LLMs could have a wide range of real-life applications ranging from health care to business and would open exciting new avenues for psychological and neuroscientific research.
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[v1.8.4] Security Release, API improvements
Release v1.8.4 · MbinOrg/mbin
This is our v1.8.4 release of Mbin. It includes one very important security patch and some improvements to the API and the handling of dead instances. Comparison to previous stable version v1.8.3: ...GitHub
Single-handedly, Yemen redefines West Asian security
The Israeli assassinations of Yemen's Prime Minister Ahmad Ghalib al-Rahwi and his cabinet members were no aberration. It fits neatly within the trajectory that Sanaa has chosen for itself: one of direct confrontation with the foundations of the western-imposed security order in West Asia, an order primarily built around protecting Israel.Following the targeted killings on 28 August, which included at least 11 other ministers, thousands of Yemenis flocked to the capital’s Al‑Shaab Mosque (formerly named Al-Saleh Mosque) for a funeral that became a vow of defiance. Mahdi al‑Mashat, now heading the Supreme Political Council (SPC), declared, “Our revenge does not sleep, and dark days await you for what the hands of your filthy, treacherous government have wrought,” condemning the attack as a betrayal of red lines, and promising military escalation.
As Rahwi’s deputy, now de facto Prime Minister Mohammed Miftah, told mourners:
“We are facing the strongest intelligence empire in the world, the one that targeted the government – the whole Zionist entity (comprising) the US administration, the Zionist entity, the Zionist Arabs and the spies inside Yemen.”
Nearly two years into Israel’s war on Gaza, Yemen has forced its way into the heart of the regional confrontation as a central actor.
From within the constraints of the blockade, it has developed a powerful model of asymmetric maritime and missile deterrence. Sanaa has become a geopolitical chokepoint, recalibrating power balances in the Red Sea and Arabian Sea.
The rise of Yemen is not measured by the number of strikes or vessels targeted, but by its growing ability to dictate regional rules of engagement – something western powers backing Israel have failed to prevent.
From day one of the war on Gaza, the Yemeni Armed Forces (YAF) declared that their naval campaign would be tied to the fate of the besieged Palestinian enclave. This stance – far more political than tactical – allowed Sanaa to surface, for the first time in modern history, as a visible and consequential military power in the region.
Single-handedly, Yemen redefines West Asian security
The Ansarallah-led government in Sanaa is no longer just defending Gaza, but reshaping the very foundations of regional deterrence and sovereignty. And it does not look like anything can stop it.thecradle.co
GrapheneOS calls out Google for their recent actions
::: spoiler Comments
- Hacker News;
- Reddit.
:::
GrapheneOS Reply on X/Twitter.
(Main Post) Sameer Samat on X/Twitter.
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Hail, wind left 200-km 'scar' across Alberta that's visible from space
Wind and hail that cut across the southern Alberta prairie last month left a "scar" visible from outer space.
On Aug. 20, 2025, 150-kilometre-per-hour gusts shredded crops and stripped grass and ground cover. The storm slashed from south of Calgary to Saskatchewan, affecting about 425,000 acres of insurable crops, plus pasture and native grassland.
That most intense zone of the storm — a sort of epicentre that dragged for hundreds of kilometres — left behind a "hail scar" that can be seen in satellite images published by U.S. space agency NASA.
A patchwork of green shades, representing crops, hay and clumps of trees is replaced by a smear measuring about 15 kilometres (9.3 miles) wide and 200 kilometres (124.3 miles) long.
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The damage on the ground was insane, by the way. Hail isn't unusual here, nor hail damage. Usually it messes up roofing, knocks over crops and dents cars. Maybe smashes windshields if it's really bad, that's it. This time it basically ground off the top foot of anything soft. Crops were reduced to just stumps.
Accounts I've gotten from the people directly under it make me think it was more wind and quantity than raw size.
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"Crop damage in this swath was total, with grain crops levelled and corn left as mostly bare stalks," it reads. "Even areas of grassland were pulverized, with grass root systems exposed and native shrubs denuded and debarked on their western facing sides."
Holy cow!
lgsp@feddit.it
in reply to VoxAliorum • • •With lemmy account you can only join "groups", so other Lemmy communities, or equivalent piefed or nodebb.
With a Mastodon account you can also join groups (Lemmy etc), but you can also follow single accounts from any mastodon, pixelfed, peertube etc instance.
Why then having a Lemmy account? The interface, how you see the posts, depends on the software. Lemmy is reddit-like, mastodon is twitter-like etc
If you want to upload your video to a peertube instance, then you need an account on that instance
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Infrapink
in reply to lgsp@feddit.it • • •like this
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hendrik
in reply to VoxAliorum • • •I think you can follow Peertube channels and write comments but not post videos. And you can't access Mastodon nor Pixelfed.
Lemmy is centered on the concept of ActivityPub groups. While Mastodon etc are about individuals, they don't use that concept (with their toots) and since following accounts isn't implemented in Lemmy, there is no way to properly interact.
Though there are other software projects. MBin combines both. And Piefed wants to get there, eventually. They already hook into a few more things, but Mastodon or Pixelfed accounts currently aren't properly supported either. But Mastodon people can write replies to our posts.
It's a bit complicated. And I think ActivityPub is fairly low level and broad (I think). So it's really down to the individual implementation and whether two projects agree to do something in a compatible way. And write code for the specifics of some content types.
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INeedMana
in reply to hendrik • • •Small nitpick. Lemmy communities are present on Mastodon and can be followed and replied to by Mastodon users. One can see a comment written by someone from Mastodon. We only can't follow a Mastodon user or Mastodon tags from Lemmy
Example: mastodon.social/@VoxAliorum@le…
Mastodon
mastodon.sociallike this
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gedaliyah
in reply to INeedMana • • •Also a Mastodon user can follow a Lemmy user.
The replies will federate but not the threads. So for example, the Mastodon user will get notifications about replies to their comments and the Lemmy user will get notifications of the Mastodon user. However, the two users will see the conversion displayed quite differently, especially if there are more than two users in the conversion.
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Blaze (he/him)
in reply to VoxAliorum • • •adhocfungus likes this.
Snoopy
in reply to Blaze (he/him) • • •On piefed you can join :
- Peertube channel : tarte.nuage-libre.fr/topic/pee… and crosspost them.
- in late 2025 : follow mastodon account.
- follow Pixelfed : not supported.
- later in 2026, mobilizon : we can create event post. The base is ready for futur federation with mobilizon : codeberg.org/rimu/pyfedi/issue…
On mbin, you can join :
- peertube channel
- mastodon account
- pixelfed (probably supported but i don't know well mbin)
Lemmy
- peertube : i got bad result with peertube but maybe over time they solved it, i haven't retested it. It was possible but you had to manually retrieve the video
- mastodon : not supported.
People from mastodon, pixelfed...can post on lemmy, mbin, piefed. They need to mention the forumverse community. Eg :
@forumlibre@jlai.lu
I often recommand this formatting on mastodon :
Another note : markdown may not be supported accross fediverse software. For example : piefed.social/post/1004603
Event post type
Codeberg.orgpoVoq
in reply to Snoopy • • •Snoopy
in reply to poVoq • • •Blaze (he/him)
in reply to Snoopy • • •psycotica0
in reply to VoxAliorum • • •Quick clarification, because I can't tell from your words if you're confused about the concept of federation or not 😅
If by "join" other servers you mean use their site as if logged in, or like you have an account there, then that is not federation. That's single-sign-on (SSO) and is not a feature of the fediverse (Mastodon, Lemmy, Peertube, etc). That would be like the "login with Facebook" or Google buttons around, where by having this account on site A, you can instantly signup on site B without making a new password or anything. That's not how federation works.
Federation is like email. I can have an email with GMail, you can have one with Proton, and someone else can have Yahoo, and I can send an email to you anyway. It doesn't mean I can "join" Proton with my GMail account, it doesn't mean I have a Yahoo account, it means I don't need a Yahoo account to communicate with Yahoo users.
But, if by "join" you meant "join a community" as in subscribe to updates from a group on another server, then most other people's answers apply. I wouldn't call that "joining a server", though, because servers host many communities and you're not joining all of them.
Joining a community works like joining a mailing list. Activity Pub allows accounts on different servers to communicate without an account on their own server, so my account would send a message to your account saying "I'd like to subscribe to this community, send me a message whenever something happens on it", and then the other server says "okay, will do", and then after that will periodically send my server messages saying "hey, here's that update you asked for". And when I comment, like right now, it's like an email being sent from my server to yours, and then your server puts it into the history.
This allows my server to present the community from your server to me, without me having account on your server. Without me having to "join" your server, I'd say.
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psycotica0
in reply to psycotica0 • • •And so I'd say this also answers your broader questions. Since Activity Pub doesn't allow me to join other servers, it also doesn't allow me to join other sites.
So a Lemmy post may be compatible with a Mastodon message sent to a group or something, that's only because the messages Activity Pub sends are similar. But PeerTube is different software with different buttons, and the existence of those buttons on PeerTube doesn't change anything about what buttons Lemmy has, and I can't "login" to a PeerTube server with my Lemmy account, so I don't gain any special abilities outside of what Lemmy can do.
The only way it would be possible is if Lemmy added a feature for uploading videos that sent the same kinds of messages to other servers that PeerTube sends. Then, if they did that, someone on a PeerTube instance could see these messages coming from Lemmy and interpret them on their server as a PeerTube video or something.
But all that Activity Pub allows is exchanging of information between sites. For them to interoperate in a way that makes sense, they need to exchange the same kind of information.
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VoxAliorum
in reply to psycotica0 • • •Good response! You were right. I thought that it would work similarly to SSO i.e. your instance works as an identity provider and your content is then generated on the other page, not send there.
Alright, so following the mail metaphor: lemmy is unable to send a video attachment so it can't allow you to upload videos to peertube; however, activity pub could allow for that.
I think I have to read up on the exact definition of "group".
Maybe I should create a new post for this but has there ever been discussions regarding SSO? So you have one identity across all fediverse services?
Snoopy
in reply to VoxAliorum • • •I'm not sure that would be the correct metaphore. Lemmy can send video attachement. But your lemmy account is not allowed to upload peertube so you can't send any video.
There is also an economical reason : a video is ressource hungry.
So it is limited to watchimg peertube video.
adhocfungus
in reply to VoxAliorum • • •In my opinion this is the biggest shortcoming of the ActivityHub ecosystem. That's not to say it should have been solved by now, since I don't know how to decentralize authentication safely. And after using it for a while I'm not sure I want a single account.
But it is a challenge facing newcomers and those trying to recruit them. This group of services is already tough to explain sometimes, and telling them it all interconnects just muddies the waters when you have to explain that it's not the way they expect.