It is proprietary, only the Authenticated Transfer protocol is open. Thus far saying it is decentralized is a controversial topic, depends on the definition of dencentralization. A regular user can only hope to host a Personal Data Server, without any real or consequential power over the network, though. Relays are not practical to be hosted by anyone but huge companies. And even then, the content and data is still under absolute power of Bluesky.
For example, if a Mastodon server decides to censor something and you don’t agree with said decision, you can change servers and still access the content and participate on the Activity Pub stream. But, if BlueSky decides to censor you or someone else, you are out of luck. Even if you host you own server, the canonical repository of the network activity is under absolute power of BlueSky.
You could host your own AT network, but it is not clear how or even if it will be able to interact with other AT networks or the canonical BlueSky network.
It isn’t proprietary though. You can run your own instance. Not decentralised atm but nothing indicating they aren’t pushing towards that.
It is proprietary, only the Authenticated Transfer protocol is open. Thus far saying it is decentralized is a controversial topic, depends on the definition of dencentralization. A regular user can only hope to host a Personal Data Server, without any real or consequential power over the network, though. Relays are not practical to be hosted by anyone but huge companies. And even then, the content and data is still under absolute power of Bluesky.
For example, if a Mastodon server decides to censor something and you don’t agree with said decision, you can change servers and still access the content and participate on the Activity Pub stream. But, if BlueSky decides to censor you or someone else, you are out of luck. Even if you host you own server, the canonical repository of the network activity is under absolute power of BlueSky.
You could host your own AT network, but it is not clear how or even if it will be able to interact with other AT networks or the canonical BlueSky network.
Here’s some sources:
https://gigazine.net/gsc_news/en/20241128-bluesky-decentralization
https://next.ink/158967/bluesky-est-il-decentralise/
https://tormentnexus.substack.com/p/is-bluesky-really-decentralized-its