Nice marketing pitch. In reality it was probably parked at an empty crossroads 10 miles behind the frontline, taking potshots at "suspected" enemy positions.
For anybody interested in the use-case underlying this article, mainly disabling peripheral displays in a multi-monitor setup, this is already built into Windows via the Win+P hotkey. It's also possible to turn off all displays by reassigning the functions of the computer's physical power/sleep buttons in Control Panel -> Power Options.
The reasons are obvious but acknowledging them is taboo. It's much easier and politically convenient to blame everything on funding, despite the fact that some school districts have the budget of a small country.
I'm using an old version of Postman with their servers blocked through the system hosts file. I keep meaning to migrate to whatever the next best thing is but this setup just works for me.