EasySDR shares this computer's SDRs as a listenable web SDR.

Two parts: the public service (easysdr.service, the locked-down system user "easysdr",
started at boot) and your receiver broker (easysdr-broker, a service of your own user,
which opens the SDRs). The station owner named in /etc/easysdr/owner may run the broker
and change settings. Open the settings from the menu (EasySDR settings); the window
starts your broker. To keep the receivers shared while you are logged out:
    sudo loginctl enable-linger $USER

Listeners use port 8074: forward that TCP port on your router to this computer.
SDRplay receivers need SDRplay's own API installed; RTL-SDR needs the rtl-sdr package.
Settings: /var/lib/easysdr/easysdr.json (the service's). Receiver logs: ~/.local/state/easysdr/.
