packet.net (or pdn) is a packet radio node you install on a Pi or any Debian-like machine: ports, NET/ROM, a web control panel, radio and rig control, and a platform for apps. Underneath it is an AX.25 v2.2 stack built on ax25sdl, tested continuously against LinBPQ, XRouter, rax25, Dire Wolf and a pair of NinoTNCs.