[FEATURE REQUEST] ProximityObserver offline mode

Hello all proximity hackers out there!

Due to a number of questions I’m creating this topic to keep track of the requests, use-cases, and argumentation for making our ProximityObserver work offline.
We want to study this case more and find a proper solution with you together :slight_smile:

It would be awesome if you could tell us more:

  1. What is your use-case?
  2. Does it need to work completely offline, or are there any flow points with the network access?
  3. Why the offline mode is necessary for you?
  4. Does it involve using any 3rd party backend to resolve beacons?

I hope we can find an awesome solution for that! :muscle: :rocket: