Starting with version 3.50, you get a web interface (point your web browser to
http://localhost:30542 by default).
You can remotely control Le Biniou ! Start it on a machine, then you can control it from another PC/tablet/mobile. Just don’t forget to specify the remote IP of the machine in the GUI (on the left of the top bar).
It has all the controls from the old SDL2 GUI, and more.