Dan Abramov氏による「There are no instances in ATProto」を読みました。AT Protocolには、ActivityPubでいう「インスタンス」という概念が存在しません。
ActivityPubがサーバー単位の分散を前提に設計されているのに対し、ATProtoはアカウント(DID)を中心に据え、PDSやリレーといったコンポーネントが独立して動作します。個人単位でのデータ移行やポータビリティが本質的にスムーズになる設計です。
個人的には、これは「何を分散の最小単位とするか」という設計思想の違いであり、優劣ではなく用途に応じた使い分けが重要だと考えています。この議論がもっと広がることを願っています。

Bounce is an open social web migration tool. It lets you migrate your account from one decentralized social network to another, and still keep all of your followers, along with some of the people you follow. Which networks are supported? Bounce currently supports migrating from Bluesky to Mastodon or Pixelfed, and from Mastodon to Bluesky. We hope to add support for Threads, micro.blog, and more in the future. What gets migrated, exactly? Right now, only your profile, followers, and some follows. The existing posts on the accounts you migrate from and to will stay the same; only new posts going forward will get bridged back to the old account.
Bounce: Switch platforms, keep your people. Bounce is an open social web migration tool. It lets you migrate your account from one decentralized social network to another.
https://connect.fediforum.org/open-social-web-services/bounce/
Curated by FediForum Connect.

Bounce is an open social web migration tool. It lets you migrate your account from one decentralized social network to another, and still keep all of your followers, along with some of the people you follow. Which networks are supported? Bounce currently supports migrating from Bluesky to Mastodon or Pixelfed, and from Mastodon to Bluesky. We hope to add support for Threads, micro.blog, and more in the future. What gets migrated, exactly? Right now, only your profile, followers, and some follows. The existing posts on the accounts you migrate from and to will stay the same; only new posts going forward will get bridged back to the old account.
Que la @EUCommission lideri amb l'exemple:
La hauria d'exigir que qualsevol plataforma "europea" que rebi fons públics sigui interoperable via #ActivityPub. Ara mateix "W" sona més a "startup amb funding i bones intencions" que a "solució europea real". Si vols una alternativa a #X, la primera pedra ha de ser obrir les portes al #Fedivers, no crear un altre jardí tancat amb gespa europea.
W, nueva red social europea en pruebas basada en AT Protocol (Bluesky): solo humanos verificados pueden publicar, posts públicos por defecto y foco en soberanía tecnológica y anti-bots. https://aidoo.news/noticia/W40gMv
#ATProtocol #SoberaniaDigital #DSA #ProteccionDeDatos #RedesSociales
W, nueva red social europea en pruebas basada en AT Protocol (Bluesky): solo humanos verificados pueden publicar, posts públicos por defecto y foco en soberanía tecnológica y anti-bots. https://aidoo.news/noticia/W40gMv
#ATProtocol #SoberaniaDigital #DSA #ProteccionDeDatos #RedesSociales
Were Bridged accounts suspended to Bsky?