I didn't dig through the code too much but it looks like the receiver just acts like a USB keyboard. So, you could probably modify the script to send some innocuous keyboard "input" that would knock off the screensaver (to show your radiator) instead of sending the close window and lock commands.

USB jiggler is designed for this use case.

If I wanted the machine to never go to sleep I'd just change the config.

USB jiggler seems to be for winning an argument with your IT team that they think they've already won.