Can I run UE with lavapipe or llvmpipe instand of Vulkan and OpenGL?

My device havnt discrete graphics card and the integrated graphics cant run UE either, so can I run UE with lavapipe or llvmpipe with CPU? Don`t care the performance.

lets get a answer somewhere is im trying that now just dealing with gentoo compile times ill try just lavapipe and then including lavapipe and the iris plus 640 opencl driver you can specify 2 drivers i dont know what it does with each 2 though