I would love to get read/write and magisk above everything and maybe help setting it up to use emu elec or a port done to use for that, would be amazing to have it dual booting that way though, but really magisk and read/write is paramount.
Here are the official firmware files and the custom twrp I have found that works for it
Firmware
http://trainbit.com/files/4224424484...re_And_Key.zip
TWRP
http://trainbit.com/files/3954424484...31_AML_ViT.zip
SLIMBOX 10.2 OUTDATED CUSTOM FIRMWARE AS DOES NOW GO TO 10.5 FOR OTHER MODEL BOXES THIS IS BEING LEFT OUT PRESENTLY DESPITE REQUESTS TO SLIMHOUSE.AND DONATING TO HIM PRIOR TO ASKING.