Comment by ErroneousBosh

Ah! I solved that easily enough. Internet Explorer 8 works okay for the webby front ends to operate the transmitter equipment. How do you run that, in this day and age, safely?

Run it in Windows XP, in a VM.

Now here's the clever bit - qemu will allow you to expose the keyboard, mouse, and framebuffer as a VNC server. So you set up Apache Guacamole to point a VNC client at the VM, and then "normal people" can log in, operate the transmitter, and log out again.

You can do a lot of sneaky things with that, including setting up headless X, running VNC on it pointed at your qemu VM, and then streaming the headless X servers's framebuffer out with ffmpeg.

Yes sometimes work can be a bit boring with not much to do, why do you ask?