It’s not as bad as I expected before trying the project. You can try with SolarWriter (which is easier to set up than this weird thing I did) to get an idea. I consider it “mechanical typewriter” level. For me, good enough.
The Kindle can’t handle USB networking, so it wouldn’t be a viable option. The private network is only needed if you are not in a WiFi capable area: at home I use it without AP
