Does Go GUI packages for Kindle exist?
 

Hi! I want to write Mega client on Golang with GUI, but go-sciter, gotk3, qt, webview doesn't work or can not to be buildable for ARM. I want to use package, which has simple models like buttons, comboboxes and etc.
Does it exist?

Try gotk3. The touchscreen Kindles have provided gtk(version ?) from the factory forever.
You will probably have to build your own gotk3, since modern distros are hard float and the Kindles are soft float.
(Although I do have a thread here on how to simultaneously support both hard and soft float 'transparently' on the Kindles (or anything else ELF formatted)).
Another of my threads that aroused less than zero interest.