When I was a kid I had a gameboy camera and a gameboy printer.<p>It was basically a low-res instagram/polaroid hybrid.<p>Take a selfie (the camera rotated, pretty revolutionary at the time), add borders and effects in-software, print out a instant photo.<p>It was sort of like an instant portable photobooth, what with the borders and frames and decals and so on.<p>It felt pretty magical when I was young. As an older person it feels as if it's a niche that could probably still be filled profitably by someone with the right stuff and marketing.
The end mentions that it's supported by GBE+ ... though getting paper for the Game Boy Printer is a bit of a challenge for enthusiasts. Some have taken to cutting non-official thermal paper to the right size.<p>While, we're on the topic, GBE+ just had a birthday (both GBE and GBE+ were released on April 1).<p><a href="https://emulation.gametechwiki.com/index.php/GBE%2B" rel="nofollow">https://emulation.gametechwiki.com/index.php/GBE%2B</a>
A part that's not super clear here is that the gameboy link cable comms are basically SPI. Running this over an Arduino is probably the easiest way to use this today.