Well your approach is probably gonna be better than mine. I simply bolted it to a RP2040.

This is more of a what-if style proof of concept, I wondered if it would be be handy to have a direct GameCube Wavebird USB receiver utilizing my variant of the @loopj.com Wavephoenix. Turns out it wasn't too difficult to put together, and it actually looks fairly clean (but looks can be deceiving).

Finally put together my first completed WavePhoenix, a replacement receiver for the GameCube Wavebird controller. I modified @loopj.com's original pcb design to use an alternate package, as the recommended one was completely out of stock. Works perfectly!