[23:26] The "Johanniter Unfallhilfe" is part of the emergency medical services in Germany. They currently experiment with patterns on their vehicles and backpacks that include QR codes which, when someone points their smart phone camera at it, will display a notification (literal translation "rubbernecking kills"). This is what it looks like (german voiceover about emergency personnel's experience with onlookers, also pointing out that taking photos of accidents and rescue operations is illegal in Germany as of 2021). (primary source also in german, a translation service of your choice might help).
[22:09] I bought a graphics tablet from a friend. I've never really been good at drawing or sketching, but I love toying around with stuff like that, and it gives me the opportunity to get more experience and maybe get better at this. We'll see.
And, as I expected, it was usable out of the box, no tinkering with additional software needed. I love Ubuntu.