···109109110110## A Social Filesystem
111111112112-This might sound very hypothetical, but it's not. What I've described so far is the premise behind the [AT protocol](https://atproto.com/). It works in production at scale. [Bluesky](https://bsky.app/), [Leaflet](https://leaflet.pub/), [Tangled](https://tangled.org/), [Semble](https://semble.so/home), and [Wisp](https://wisp.place/) are some of the new open social apps built this way.
112112+This might sound very hypothetical, but it's not. What I've described so far is the premise behind the [AT protocol](https://atproto.com/). It works in production at scale. [Bluesky](https://bsky.app/), [Leaflet](https://leaflet.pub/), [Tangled](https://tangled.org/), [Semble](https://semble.so/), and [Wisp](https://wisp.place/) are some of the new open social apps built this way.
113113114114It doesn't *feel* different to use those apps. But by lifting user data out of the apps, we force the same separation as we've had in personal computing: **apps don't trap what you make with them.** Someone can always make a new app for old data:
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