I'm on the path to Debian on my PW3 and I've got as far as KUAL. Next is usbnet and I'm a little stuck as I keep only finding posts for usbnet on non-touch devices.
https://wiki.mobileread.com/wiki/Kin...USB_Networking says to read
https://www.mobileread.com/forums/sh...d.php?t=186645 to get usbnet and that references kindle-usbnet-0.21.N.zip which seems to be quite old given I can find kindle-usbnetwork-0.57.N-k4.zip - but only for non-touch.