This simple CircuitPython code for the Adafruit Circuit Playground Express will show a message and logout any computer it's plugged into.
Upload the code along with any sound you'd like to play during the message and logout and save the sound as alarm.wav
On plugging into any computer, press the applicable button for it's OS.
- Button A - Chrome OS
- Button B - Windows
- Button A and B - Mac
That's it, enjoy the cross-platform destruction!