Artist's commentary
Hang in There, Kogasa-san 3671
This is also a story of how I finally bought this and so was motivated to clean the keyboard. The principal it operates on, apparently, is that when the ultrasonic waves strike an object, they generate extremely small bubbles, and the dirt gets floated off when these instantly burst!
And so, today will be my final upload of the year.
Nearly all of this year's conventions were either canceled or postponed by a certain infectious disease, but I'm hoping they'll come back next year...
Happy New Year, everyone!