To clarify Darryl's comment: FLARMnet data is used by display devices only.
FLARMnet is not used by FLARM or PowerFLARM and has nothing to do with alerts.

Please register your ICAO (FLARM) ID in FLARMnet so everyone using a
FLARMnet-compatible display device (and who has downloaded FLARMnet DB into it)
will see your ID.
Not registering is anti-social!
Thanks!