Hi Andrew,
If it is not too time consuming for you, I think it would be great if you could improve the aprsispseudoserver plugin to support authenticated transmit-capable connections because it would help the sysop of the IGATE a lot. This is true if YAAC IGATE/DIGI runs in a RPi-3 which is a low power device and the SYSOP will not have to touch his IGATE and make it run slower for mapping. He can run mapping APRS in his Desktop and let the YACC running in an RPi-3B to dedicate all of it's power for being a headless IGATE/DIGI. This is also important now that electricity bills have gone sky high and running a YAAC IGATE/DIGI in a low power device can be very economical and save most IGATES/DIGIS from closure if the sysop himself/herself has to pay the electricity bill!
So if it is not really time consuming, please do this!
Thanks in advance!
73 de Demetre M0SUY