Yes, I have both the onboard HD530 and the GTX1070 (PEG set to default in BIOS) enabled. This is a more up-to-date list of the kexts I have installed:
- Lilu 1.2.0
- NvidiaGraphicsFixup 1.2.0
- IntelGraphicsFixup 1.2.0
- Shiki 2.1.0 (with shikigva=12 flag)
I am using VoodooHDA for audio. I can't claim to have a totally 100% working system though - iTunes video is still flaky, but otherwise sound and graphics acceleration is all there.