@bud_t
Look at the link below. It's a messenger using KISS protocol, made for LoRaAPRS, but should work with any device with TCP interface.
I have used it only with #LoRaAPRS (1200bps) and HF radio (with Direwolf sound modem 300bps) but you can try other modulations. It could be a nice extension for #AREDN with a mobile or handy devices. #hamradio
https://app.lora-aprs.pl