Feature-wise they are a bit different, like rmk has support for Bluetooth and wireless split configurations. But is also lacking some things like display support. The reasons I went with it were for native vial support, easy configuration for the rp2040, and stupid easy pin and keymap setup. I had never written firmware for a new board before this and had a working build in not even an hour after reading the docs.

I’m sure it would be! I didn’t worry about dimensions too much since I have the laptop keyboard disabled with the new one plugged in.

That looks great!