Petition to build and cache unfree packages on cache.nixos.org

[samuela]

Relevant thread:

Improving NixOS data science infrastructure: CI for MKL&CUDA

I use NixOS for reproducible builds and ultimately I hope that by packaging scientific software we can contribute to improving reproducibility in data science and make it easier to share scientific applications with complex dependencies. Compared to conda, arguably the most widely used package manager in data science, Nix has many advantages, but one major shortcomings from a lay user perspective: because hydra does not build against MKL or CUDA, compilation takes hours for packages like pytorc…