We do maintain a bunch of other stuff too! A Game Boy Assembly Tutorial[1], an open digital repository of Game Boy homebrew software[2] and RGBDS[3], the de-facto standard assembly toolchain for the Game Boy.

We also hosted popular game jams such as the gbcompo21[4] and gbcompo23[5], with winning entries usually going the long way and publishing as physical products.

Come join us on Discord[6] if you'd like to get involved and contribute.

[0] https://github.com/avivace [1] https://gbdev.io/gb-asm-tutorial/ [2] https://hh.gbdev.io/ [3] https://rgbds.gbdev.io/ [4] https://itch.io/jam/gbcompo21 [5] https://itch.io/jam/gbcompo23 [6] https://gbdev.io/chat.html

The amount of dedication, skill, and passion that goes into it on a daily basis is mindblowing, and people keep discovering hardware quirks and bugs to this very day! I believe it wasn't that long ago that people discovered a glitch in the audio subsystem that gave you more control over note envelopes, and it was promptly added to LSDj (a tracker for the Game Boy that was first released in 2000) by the original author, who's still maintaining it to this day.

0: https://www.youtube.com/watch?v=RZUDEaLa5Nw

EDIT: oops, forgot the link!

My first interaction was asking why the Nintendo logo would appear and never disappear and they immediately knew it was a rookie pitfall: I had my button inputs set to low which actually means pressed, so my emulator was resetting itself infinitely.

https://problemkaputt.de/gbatek.htm

i've got myself a dsi and at some point plan on doing some from-scratch development for it -- that single file should be enough.

I think this document would be a great resource for me to go really to the basics and this guide is well updated too so it's a plus