Key Info
Opencode used its own AI tool to rewrite the OpenTunnel backend in Rust and migrate it off Cloudflare onto 10 Fly.io regions worldwide. The migration was handled gracefully, with all users' tunnels automatically reconnecting to the new system.
Highlights
- Opencode performed a full backend rewrite in Rust using opencode itself
- Infrastructure moved from Cloudflare to 10 Fly.io regions across the globe
- Migration was executed smoothly with no downtime for users
- Existing tunnels automatically reconnected to the new system after the switch