I am glad to see this move.
I have more RPis than I can remember, some of the applications I have running:
- 3 D-STAR repeater conversions (http://nw7dr.dstar-relay.net:3000) and ircDDBGateway.
- Direwolf Packet (1200 and 9600)
- Stratum 1 NTP Timeserver using the Adafruit Ultimate GPS hat -- provides highly accurate time to my LAN
- Fldigi/flrig (currently have waterfall problem)