This is great. A few years ago, I decided to buy a WII U, since I have basically every Nintendo console system since the NES. But the gamepad screen was broken and I couldn't sync the gamepad to the screen until I fixed it. And I tried to see if there was any alternative, but there wasn't until now. Hopefully that means more WII Us can be saved... You can sometimes find used Wii Us for $30 without the gamepad, while the gamepad itself costs around $100..
You can. It works really well, except for not supporting the Wii U power button and not yet allowing button reconfig. The latter is annoying because you are using Xbox bindings on Nintendo.
My impression the video isn't designed for people "inside baseball," and tries to establish context for "What even is this thing that you're working on?" I guess the author could add a skip if viewers don't want 5-minutes~ of Wii U background/context.
Here is a rough timestamped-link for skipping the context:
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