Excited to announce that I will be at #fediforum today speed demo-ing my latest project: an ActivityPub data observatory!

This observatory does not collect any user data or metadata. Instead I am looking at the *shape* (aka schema) of data being sent around the fediverse. This will let software devs ask questions like "How is a Mastodon 4.2.0 image post formatted differently from a Misskey 2024.7.0 image post?"

And we'll get real answers based on data rather than on poor documentation.

@darius love this, it might even more useful than a test suite!
@django I think this will be really helpful for people writing tests for a test suite! Like it's one thing to write a test suite that tests conformance with a standard, it's another thing to write a test suite that tests conformance with actual software out in the wild