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What do we think of Bluesky now?
(lemmy.ml)
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this post was submitted on 02 Aug 2025
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As far as I know Bluesky protocol is open-source but not its main app. Also, there are several apps available to use Mastodon. Additionally, note that Bluesky uses the AT Protocol (developed by Bluesky) while Mastodon uses ActivityPub (W3C standard) which is more friendly for third-party devs.
As far as federation is concerned it's still mostly centralized with Bluesky while Mastodon is fully federated.
Something I personaly like as well with Mastodon is that the feeds don't use algorithms.
Mastodon builds on the ActivityPub protocol with its own API, but the last time I looked into it, the documentation of the API was poor, so it was difficult to develop for.
I haven't looked at the BlueSky docs so I can't compare, but it sticks in my craw a bit seeing the words "friendly for third-party devs" being used in the same sentence with Mastodon
Not being a developer myself, the wording may not be the best sorry. The take home message was that Mastodon seems more prone to external development based on its protocol and the fact that more than 20 apps already exist (all platforms included).
Outside of using several apps to use Mastodon, I personaly rely on its API only to add Mastodon posts as comments on my static blog.
The ecosystem is not so healthy on the server side, and I think the API documentation is a major factor.
The project has been sitting on this for many years
You could say it's an improvement over BlueSky because with Mastodon you can host your own server, but if you don't like their server, then you're out of options