Update on original post - Open-source WhatsApp client and self-hosted bridge for the Light Phone III
Quick update to my earlier post. I cleaned up the WhatsApp project, removed my private server configuration, and published it so other LP3 owners can run their own copy.
The repo contains Agents.md file, so feel free to pass it to your codex/claude agent and it will make it work end to end.
Setup takes a few steps. Run the bridge with Docker on an always-on computer or VPS, give it an HTTPS address using Cloudflare Tunnel or Caddy, scan the first QR with your main WhatsApp phone, install the signed APK on the LP3, and scan the second setup QR.
After pairing, you can view chat history, use groups, send and receive messages, receive images, and play or record voice notes through your own server.
The repo includes the APK, checksum, Docker setup, hosting guide, backup instructions, and LP3 installation steps.
Github - https://github.com/kushthakker/lightphone-whatsapp-open-source