Basically using Github Ci/CD to build and cache for nix (in cachix).

This is a very legendary idea i got from mio-19's repo, who does the same stuff but in whole different level.
This comes very useful if you want to build something in gentoo style, on nix. in my case; blender with CUDA support which will burn my CPU if i did it locally. also some binaries might not be cached at the time you are updating, this also solve it. resulting in a non CPU heavy updates.