Thank you! I'm doing my best to create my "dream" voxel engine (within the confines of my abilities as a software engineer).
I'm considering at some point when my voxel engine is fully functional and multi-platform (Windows, Linux and maybe other OSs), I may release the voxel engine as a SDK in closed source form (object code, C++ headers, SPIR-V shader code) under a licence where free games could use it for free and commercial games would pay royalty per copy of games sold.