really excited about this tutorial we put out last week describing how to build a minimal non-bsky app on atproto: "Statusphere"
there are a lot of questions (and options!) about how cross-app data+interaction will work in atproto, but at a minimum I think the protocol is quite solid for building new apps/modalities, and excited to finally demonstrate it!

AT Protocol
Quick start guide to building applications on AT Protocol - AT Protocol
In this guide, we're going to build a simple multi-user app that publishes your current "status" as an emoji.
GitHub
GitHub - bluesky-social/statusphere-example-app: An example atproto application using ExpressJS and Typescript.
An example atproto application using ExpressJS and Typescript. - bluesky-social/statusphere-example-app