Chris, about making the keyboard/chair wireless, if you want to take a run at it here is what I’ve been thinking. I bought a Logitech K480 Bluetooth keyboard that switched to three devices. It’s my favorite small keyboard. I like the medium touch, small travel keys with a satisfying click and sound. Perhaps those keys could find themselves onto the anxiously anticipated Keyboardio Monarch.
Oh yeah, wireless chair… The K480 has a switch to select one of three different devices. That’s what we have to emulate. That wireless connections function is built into the $5 PiZero. All you would have to do is plug in your Keyboardio, make the PiZero Bluetooth connection to your computer and Zaaaap! you have a wireless chair. All that would need be added is a small script.
Well, data wireless. You still have to have power. But I posit that your system will have a better data connection than running 25 feet of copper in a big loop antenna configuration. So, I’d just run a power cord until you get the data working the way you want.
Then you find a power bank big enuf to keep the Keyboardio and the Pi going as long as you need it. That’s easy enuf to calculate… and then start plugging your ride in every night.