Did you base on Mi5? That's what I'm doing using our stock Oreo build. Pretty sure it won't be hard to since everything is hidlized now.
Yes, it was based on mi5. Also you need to disable this config on kernel to boot sepolicy binaries which is not from stock rom.
Yep, I can help.
Stop fussing. Axon 7 has a ton of other roms, fully stable on nougat. There are three Oreo roms still need work. If you don't like the phone then change it lol. Nothing is gonna change by complaining here.
I've began. I have it as a project on github privately and I'll make it public as soon as things working so others can contribute. So if anyone wants to contribute they can clone the repo and run the build script to compile the system.img and boot.img.