Blender 2.79b + RTX 3080

Blender 2.79 cannot render on 30xx series. Blender can't render via OptiX and even CUDA because old cycles doesn't support CUDA 10 or kernel 8.6. I tried copy paste 8.6 kernel files but it's doesn't help. I found topic about how to make your own custom blender builds. Could someone help build custom blender 2.79b + CUDA 10? blender.stackexchange.com/questions/119837/how-can-one-do-rendering-with-cycles-using-an-nvidia-rtx-gpu