This is a curated reading list and tool index for developers learning AT Protocol, Bluesky's decentralized social networking stack. The author (Tierney Cyren) organizes resources into five buckets: conceptual posts explaining AT Protocol's architecture (especially how it differs from federated systems), a newer section on "Spaces" (private data storage), lexicon standards, infrastructure tools like Personal Data Servers and AppViews, and live applications demonstrating the protocol in practice (weather apps, flight trackers, music platforms, domain registrars). The implicit claim is that AT Protocol enables applications beyond social media clones by treating user data ownership as primary. For a practitioner, the value is immediate: you get concrete starting points (Dan Abramov's posts, HappyView for deployment) rather than scattered references. The post also signals what the author sees as community health markers—like Standard.site as a community-owned lexicon separate from Bluesky Inc. One sharp question: the author notes AppViews have been "called the hardest part of AT Protocol Development" but admits laziness finding the source—would be useful to know if that remains true or if tooling has caught up.