Fantastic! I just ordered the set below from Amazon. It's obviously much more expensive than what you bought, but I need to get this built for my daughter for Xmas. I might order one of yours just to get another affordable one on the way.

"SJ@JX Arcade Game Controller USB Encoder Board Gamepad LED Microswitch Button Analog Joystick Flying Stick for Nintendo Switch PC PS3 Retropie Raspberry Pi" (https://www.amazon.com/gp/product/B08J47Y4X4/)

One more question.... do you know if there is there any way (apart from the item's listed description) to tell by looking at the physical board whether it will work with Android? Just trying to get smarter on detecting the subtleties between these different types of boards. Thanks again!