My experiences with G1, following these instuctructions:
@jhax01: very good and smooth working, sleep, wi-fi - o.k. but only laptop functions, couldn't get tablet functions, I mean not touchscreen.
@Mitsuhiro: almost the same as with jhax01 instructions.
So, maybe I am doing something wrong, but I followed instructions step-by-step.
I will try again with procedure in
https://www.tonymacx86.com/threads/...the-ultimate-os-x-tablet-pretty-close.209600/ - as I can remember, I got a better results with that, only not zoom on touchscreen.
Also, another thing doesn't work in both procedures - sound mute function from keyboard.
Related to sound volume control - is it possible to get this in function with rocker on left side below on/off switch? jhax01 said there is some changing - I suppose with some tweaks and settings in config.plist this can be achieved, but I have no knowlegde for doing this.
My G1 came with Samsung SSD - M.2 NVMe 256 GB model MZ-VLV2560 (PM951 serie), so I tried PikeAlpha's hack for Sierra -
https://pikeralpha.wordpress.com/2016/06/27/nvmefamily-kext-bin-patch-data/comment-page-1/#comments - and to confirm it is working o.k. - maybe one can find it useful info.
But didn't get success with High Sierra - without any hack, following advices that there is no need for any hack, because HS has generic support for NVMe drives. Maybe issue is with 512byte block what Samsung drives have.