A few days ago, my groovebox, the #SynthstromDeluge, running the new and awesome community-built firmware, crashed, which was very cool.
Not that it crashed, but what happened next: It displayed a colorful pattern on its pads.
That's a stack trace. It's listing the last steps the code made before crashing. The devs have asked to be sent photos of these, to help them find bugs.
I've pasted it on Discord, and there's a _bot_ that recognizes these images and decodes them into addresses!