How to make a bidirectional GitHub Repository Sync
Briefly

How to make a bidirectional GitHub Repository Sync
"You know that sense of feeling where you're having multiple white-label deployments and you're basically maintaining the same codebase in separate repos? Yeah, I was there. Instead of the old fork and pray trick, I built a bidirectional sync system that is production-ready. What I ended up with Automated two-way sync between GitHub repositories SSH-based auth (since PATs won't execute workflows) Change detection that saves me a lot on CI minutes Deployment status that propagates to mirror repos Minimal manual intervention"
"The obvious culprits did not work: Git forks? No way. Everyone sees it's a fork, and GitHub Actions get wonky Manual syncing? If you enjoy repetitive labor and midnight rollbacks, sure One-way mirroring? Close, but I needed bidirectional due to reasons (organizational politics, mainly) The config looked something like this: The challenge: Keep both repos identical but make sure changes can come from either one, and deployments must occur automatically."
A bidirectional sync system keeps two GitHub repositories identical while allowing changes to originate from either repo and triggering CI/CD automatically. SSH-based authentication is required because PATs cannot execute workflows. The solution includes components to configure SSH keys and remotes, detect and synchronize changes, and propagate deployment status to mirrors. Conflict resolution mechanisms and efficient change detection reduce unnecessary CI minutes. Observability captures deployment and sync failures. The architecture supports white-label constraints such as organizational boundaries, repo isolation, per-brand pipelines, and compliance requirements, enabling minimal manual intervention and production-ready mirrored deployments.
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