I guess it's impressive having something like this on a GBA on paper, but the problem is this:
We have been able to do this for years now without the fancy bells and whistles of having custom menus like the official GBA Video carts
https://gbatemp.net/threads/guide-how-to-convert-youtube-videos-to-game-boy-advance-rom-files.520954/
And you're expecting us to pay real world money for this when you could have open sourced any tools you might have made yourself? That's not happening at all.