grishka (@grishka@mastodon.social)
That feeling when you want to block hf.space on your server but you realize that the way domain blocks are implemented in Smithereen, you can only block a server that has known actors, not an entire domain with all its subdomains... Time for new #Smithereen features I guess.
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jaz (@jaz@toot.wales)
Why "Delete" is complicated in the #Fediverse
Unlike X or Facebook where one company owns the only copy of your post, Mastodon and other Social Web apps use the #ActivityPub protocol.
When you post, your server (e.g. toot.wales) sends a copy to some number of servers (e.g. mastodon.social) - anywhere from one to 40,000 depending on a bunch of stuff.
When you delete, your server sends a Delete request to all those same servers.
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PortaFed (@PortaFed@mastodon.social)
Introducing PortaFed — cryptographic account portability for #ActivityPub
When your server shuts down, your identity and posts are gone.
PortaFed fixes this with a MigrationProof: a Merkle commitment
over your full export, signed by your ed25519 key, verifiable
by any destination server without contacting the origin.
No blockchain. No registry. No core spec changes.
Spec + Rust implementation:
https://codeberg.org/portafed/portafed
Feedback welcome — especially from server maintainers.
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PortaFed (@PortaFed@mastodon.social)
Introducing PortaFed — cryptographic account portability for #ActivityPub
When your server shuts down, your identity and posts are gone.
PortaFed fixes this with a MigrationProof: a Merkle commitment
over your full export, signed by your ed25519 key, verifiable
by any destination server without contacting the origin.
No blockchain. No registry. No core spec changes.
Spec + Rust implementation:
https://codeberg.org/portafed/portafed
Feedback welcome — especially from server maintainers.
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emanuelecariati (@emanuelecariati@varese.social)
Prof @Adrianogallina ma che fine ha fatto https://untempoperpensare.wordpress.com/ ? Ha smesso di scrivere? Lo sa che puó collegare il sito al fediverso? https://m.youtube.com/watch?v=t4pmWufYRr0&pp=ugMGCgJpdBABugUEEgJpdMoFFXdvcmRwcmVzcyBhY3Rpdml0eXB1YtgHAQ%3D%3D
Lo fece tempo fa @WhiteJolly con il suo @get-backs.com ma adesso si è preso una pausa… chissà perchè 🤔
#wordpress #activitypub #filosofia
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article (@article@blog.fabiomanganiello.com)
A test post to quickly check that #activitypub federation and #markdown rendering work on #madblog.
A full blog article should be coming soon.
Big shout to @fabio@manganiello.eu and @blacklight@mastodon.online to see if they get a notification!
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social (@social@taquiones.net)
@grunfink@comam.es, el autore de #snac (el más mejor servidor #activitypub del mundo mundial) clarifica en ese texto que la IA para contribuir mejor que no.
PRs must not incorporate any material generated by or with the assistance of any so-called "generative AI" tool or LLM.
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notes (@notes@other.li)
Let's see what we ca do with that...
...starts new project... 
#Django #ActivityPub
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sigismundninja (@sigismundninja@mastodon.nu)
@thegreenparty is likely the party on #activitypub with the most followers. They should tell their siblings to post on open social media as well. Preferably Mastodon, but I guess Threads is better than nothing. Or maybe not..
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admin (@admin@mstdn.feddit.social)
Sharkey.Feddit.Social更新完毕！
2025.4.6 "Security fixes 2, electric boogaloo"
This PR fixes several security issues that will be disclosed in further detail at a future date.
fd36256b 2025.4.6 Created 5 hours ago by julia's avatar
https://sharkey.feddit.social
https://activitypub.software/TransFem-org/Sharkey/-/releases/2025.4.6
https://sharkey.team/notes/ajka8rybkjf80061
https://transfem.social/notes/ajkq30j9wury01jb
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bkuhn (@bkuhn@fedi.copyleft.org)
😲…I just realized #FediCon is in the *same* venue as #FOSSY just *3* days before FOSSY starts!
I'm sad we weren't all in touch as maybe together we coulda gotten a better venue deal, but I hope #Fediverse folks going to event will be able stay in Vancouver for FOSSY!
Also, I suspect #SFC would welcome a Fediverse track at FOSSY…
https://sfconservancy.org/fossy/community-tracks/
…maybe as a B-sides event for overflow talks?
Cc: @reiver @evan @ossguy @karen
#ActivityPub #FOSS #OpenSource #Mastodon
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MDT (@MDT@mast.lat)
¿Sabían que Lemmy, la plataforma de agregación de noticias y foros del Fediverso, fue lanzada originalmente en febrero de 2019 como una alternativa descentralizada y de código abierto a Reddit?
Desarrollada por Dessalines y Nutmic, esta herramienta utiliza el protocolo ActivityPub, lo que permite que diferentes instancias de Lemmy interactúen entre sí y con otros servicios como Mastodon o Friendica. A diferencia de las plataformas centralizadas, Lemmy permite que cualquier usuario con los conocimientos técnicos necesarios aloje su propio servidor, manteniendo el control total sobre los datos, las políticas de moderación y la administración de la comunidad sin depender de una estructura corporativa única.
El crecimiento exponencial de la red ocurrió a mediados de 2023, tras los cambios en la política de precios de la API de Reddit, lo que provocó una migración masiva de usuarios hacia el Fediverso. Técnicamente, Lemmy está escrito en el lenguaje de programación Rust para el servidor y utiliza el framework Actix, mientras que el front-end está desarrollado en Typescript con Inferno. Esta arquitectura permite un manejo eficiente de recursos y una alta velocidad de respuesta en comparación con otras plataformas de microblogueo. Actualmente, la red cuenta con miles de comunidades activas organizadas por temáticas que van desde el software libre hasta la fotografía, consolidándose como el principal nodo de foros federados a nivel global.
#Lemmy #Fediverso #ActivityPub #SoftwareLibre #Tecnología #Descentralización
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