I was pointed to
https://rtl-433-hass.github.io/rtl_433/latest/
and it looks interesting.
I have two small/old computers running rtl_433 in different places.
Both of them listen to 433. Each runs rtl_433_mqtt_relay and I have
hand yaml for entities. This results in the 433 entities having data if
either radio is powered on and can hear the radio.
Is there a way to fuse multiple receivers with the integration?