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Legal & Interoperability

Not legal advice

This document describes the project's engineering and interoperability posture. It is not legal advice. Consult qualified counsel for your jurisdiction.

Summary

LibreRing is clean-room reverse engineering for interoperability under U.S. DMCA §1201(f) and similar laws in other jurisdictions where applicable.

What LibreRing does

  • Connects to Oura Ring hardware you own over standard Bluetooth Low Energy
  • Reads GATT characteristics the ring advertises when paired
  • Stores and displays decoded health metrics locally
  • Optionally syncs to your own cloud account (Supabase)

What LibreRing does not do

  • Modify Oura ring firmware
  • Distribute Oura proprietary binaries, models, or server code
  • Bypass DRM on encrypted third-party media
  • Impersonate the official Oura app or servers
  • Enable use of stolen or shared rings

Trademarks

Oura, Oura Ring, and related marks are trademarks of Oura Health Oy. LibreRing is an independent, open-source project and is not affiliated with, endorsed by, or sponsored by Oura Health Oy.

License

Source code is released under the MIT License.

Third-party references:

Health data disclaimer

LibreRing is not a medical device. Metrics and scores are for wellness tracking only. Do not use for diagnosis or treatment decisions.

Contributing legally

  • Do not commit Oura app decompiled code, APKs, or proprietary ML weights
  • Do not commit personal key.hex, captures, or health logs — see .gitignore
  • Document protocol findings in PROTOCOL.md from observable BLE behavior

Reporting concerns

Security issues: see security.md.

Legal questions: open a GitHub Discussion or issue tagged legal.