This is a really great project! I hope that you will finish it...
BTW, are you taking part in GBA Jam 2022? -- https://itch.io/jam/gbajam22
Also, as you are developing for retro hardware, you might find this dev community interesting: https://old.reddit.com/r/retrogamedev/