Building on ATProto
86 points - today at 6:23 PM
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Regarding his other concern, I would've loved to make atproto a localfirst protocol -- that's the field the atproto team came from -- but we had to pick & choose where to spend our complexity budget. I wouldn't say it's a nonstarter for the ecosystem; you can use something like iroh in conjuction with atproto to share identities -- dial people at their dids or domain names -- and then commit state to the atproto repo once it's ready to leave your local sync mesh. Maybe that sort of thing makes its way into future versions of the protocol. But, engineering often involves trades, and for the v1 that was one of the trades we had to make.
As an extension of that I've been building a small language to build games (with a nice time traveling debugger and automatic replays) inspired by Elm. Go and Chess are both built on top of this and you could fork them and modify the rules. Want to code a new Chess variant? Go ahead! Want to code a whole new game you want to try? Go ahead!
What I'm very excited with ATProto is that because all games are broadcast on it and each shares a core system of turn-based replays (and review system with branching) software can be built on top to do AI analysis, or a replay view. The idea that my application can be extended without me adding an API is very exciting and very much in the direction I want to take the system (community is the core tenet).
Imagine someone starts startup A on-top of the ATProto. They raise some money, get some users, some people love it, but ultimately they die. If the data was private to that service, that data dies with the startup. But if the data is all public future startup B can read that old data and do something with it. As a user that's brings me a ton of utility and comfort trying out new services.
If you're trying to built a local-first, mostly private service I just don't think the ATProto is the right tool for the job.
It never catches on with application developers because it requires you to already worship the protocol and build around it.
> it should just be called βprivate dataβ
> the resulting design looks very hard to build on
> Private and public data are basically identical. ... The permission is world-read
Way back before Bluesky decided on their own what permissioned data would look like, when the Atmosphere Private Data WG still thought they had a say in the design, I gave a talk on a ReBAC/Zanzibar style system that aligns with what I think the author is looking for.
https://www.youtube.com/watch?v=oYKA85oZc8U&t=3730s
I suppose we could still build on and run a fork like mine if enough people wanted a more robust IAM system. There are some fundamental issues that I am not sure are resolvable without building them into the protocol core from the start. I have personally given up because of the leadership and am waiting/pondering the next protocol. Another design constraint I'd like to see is incentivizing apps to be federated and installable at the PDS as well as incentivizing small social over public square modalities.