But still, one of the things I liked about my GBA was how well it fit in the hand, part of that was because the back was somewhat contoured. The new trend of everything being flat rectangles makes devices a lot less comfy for me.
I see where you're coming from here. I like playing the switch handheld but it's way too big for true portable gaming.
>part of that was because the back was somewhat contoured
It's got very slightly elevated grip pads on the back and the build quality is high so it feels solid.
https://main.retro-handhelds.com/content/images/2021/09/RG35...
I found the Retro Game Corps YouTube channel to be a big help when getting everything setup.
I ended up modifying the behavior to hide everything on the launch screen except for 1-2 games I'm playing and made them always launch from save states on boot.
GBA: Approximately 145 mm (5.7 in) x 82 mm (3.2 in) x 24 mm (0.94 in) (WxHxD)
Not exactly the same, but very close.
I wonder if you could drop the internals for the anberic into a gba frame