Austin McKinley
952a176c83
The legacy dual-write leg posted to https://updates.bsky.app/v1/upload. That hostname has resolved to denis on EKS since the 2026-07-26 origin flip, and denis deliberately has no /v1/upload route -- publishing there is out-of-band via `denis publish`. The first OTA publish attempted after the flip therefore got a 404 (run 30220289826). Point it at ota1's own origin instead. The dual-write was never independent of the cutover: it wrote to ota1 *through the hostname being cut over*, so flipping the origin necessarily broke it. Addressing ota1 directly is what the step always meant. Verified reachable: ota1.us-east.updates.bsky.network/v1/upload returns 401 (route present, auth required) where updates.bsky.app returns 404. Also reorder the two publishes so denis goes first. This is the more serious half of the bug. The legacy step ran before the denis steps, so when it 404'd the three denis steps were skipped and the bundle reached NEITHER origin -- a dual-write that takes down the working path when its deprecated half fails is worse than no dual-write. denis is the sole origin serving clients, so it publishes first; the legacy upload follows and is still required to pass, so a stale ota1 remains a loud failure rather than a silent one. The upload URL is now overridable via OTA1_ORIGIN, and the comment explains why it must never be set back to the CDN hostname. Both halves go away together when ota1 is decommissioned (Phase 5). Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Bluesky Social App
Welcome friends! This is the codebase for the Bluesky Social app.
Get the app itself:
- Web: bsky.app
- iOS: App Store
- Android: Play Store
Development Resources
This is a React Native application, written in the TypeScript programming language. It builds on the atproto TypeScript packages (like @atproto/api), which are also open source, but in a different git repository.
There is a small amount of Go language source code (in ./bskyweb/), for a web service that returns the React Native Web application.
The Build Instructions are a good place to get started with the app itself.
The Authenticated Transfer Protocol ("AT Protocol" or "atproto") is a decentralized social media protocol. You don't need to understand AT Protocol to work with this application, but it can help. Learn more at:
- Overview and Guides
- GitHub Discussions 👈 Great place to ask questions
- Protocol Specifications
- Blogpost on self-authenticating data structures
The Bluesky Social application encompasses a set of schemas and APIs built in the overall AT Protocol framework. The namespace for these "Lexicons" is app.bsky.*.
Contributions
Note
While we do accept contributions, we prioritize high quality issues and pull requests. Adhering to the below guidelines will ensure a more timely review.
Rules:
- We may not respond to your issue or PR.
- We may close an issue or PR without much feedback.
- We may lock discussions or contributions if our attention is getting DDOSed.
- We're not going to provide support for build issues.
Guidelines:
- Check for existing issues before filing a new one please.
- Open an issue and give some time for discussion before submitting a PR.
- Stay away from PRs like...
- Changing "Post" to "Skeet."
- Refactoring the codebase, e.g., to replace React Query with Redux Toolkit or something.
- Adding entirely new features without prior discussion.
Remember, we serve a wide community of users. Our day-to-day involves us constantly asking "which top priority is our top priority." If you submit well-written PRs that solve problems concisely, that's an awesome contribution. Otherwise, as much as we'd love to accept your ideas and contributions, we really don't have the bandwidth. That's what forking is for!
Forking guidelines
You have our blessing 🪄✨ to fork this application! However, it's very important to be clear to users when you're giving them a fork.
Please be sure to:
- Change all branding in the repository and UI to clearly differentiate from Bluesky.
- Change any support links (feedback, email, terms of service, etc) to your own systems.
- Replace any analytics or error-collection systems with your own so we don't get super confused.
Security disclosures
If you discover any security issues, please send an email to security@bsky.app. The email is automatically CC'd to the entire team and we'll respond promptly.
Are you a developer interested in building on atproto?
Bluesky is an open social network built on the AT Protocol, a flexible technology that will never lock developers out of the ecosystems that they help build. With atproto, third-party integration can be as seamless as first-party through custom feeds, federated services, clients, and more.
License (MIT)
See ./LICENSE for the full license.
Bluesky Social PBC has committed to a software patent non-aggression pledge. For details see the original announcement.
P.S.
We ❤️ you and all of the ways you support us. Thank you for making Bluesky a great place!