Flying #uxn ships with controllers just became possible in my engine!
The client cross-maps the keyb. and contr. inputs, so you can emulate the latter with the former, and vice versa. The input deltas are aggregated and sent to the server, which pushes it to the event buffer of the cpu (which ran @100Hz).
In the demo, I switch to controller mode from normal (NOR -> CON on the input prompt), and raise my x/y coordinates with the left stick, and finally my z coordinate with the right trigger.