Peer attributes & filtering

[backkem]

We may want to consider granular filtering of peers. For example:

• Peers playing the same game.
• Peers using a specific connection type (Wifi-direct vs LAN).

The goal is to help guide a user to pick peers by avoiding presenting them with a potentially long list of options.

[backkem]

Since we don't define a specific "local communication medium", it may be helpful to provide filtering/hints to what communication medium is to be used.

[backkem]

Potentially interesting approach for privacy preserving peer filtering (private set intersection (PSI)): https://www.usenix.org/conference/usenixsecurity21/presentation/heinrich