plane-radar-feed (self-hosted)

GET  /v1/feed?lat=&lon=&dist=&gnd=  aircraft + active tags, PR1 format
GET  /v1/tags                       active tags only
GET  /healthz                       liveness
POST /v1/register                   dev, secret, handle
POST /v1/tag                        icao (signed)
POST /v1/untag                      icao (signed)
POST /v1/untagall                   (signed)

Aircraft data from adsb.fi (https://adsb.fi/), used under their open data terms.