Oh, this is cool. It's like a DIY Digirig! I really like that it is MIT-licensed (open source design).
You could change the audio plugs to sockets so you can use the device with radios that have the speaker/mic plugs at a different gap (Icom HTs seem to have the plugs at 10mm apart[0] instead of the Kenwood/Baofeng/etc. spacing of 12mm[1].
Yeah seems like making these 3.5mm receptacles would be the icing on the cake -- in fact, might even win some converts marketing it as an open source digirig.
You could change the audio plugs to sockets so you can use the device with radios that have the speaker/mic plugs at a different gap (Icom HTs seem to have the plugs at 10mm apart[0] instead of the Kenwood/Baofeng/etc. spacing of 12mm[1].
[0] https://forum.digirig.net/uploads/default/original/1X/7e23c4...
[1] https://i.stack.imgur.com/BMmRJ.jpg