1 # this version of nixpkgs contains liblapack at ?
2 # this version of nixpkgs contains gsl at ?
3 import (builtins.fetchGit {
4 # Descriptive name to make the store path easier to identify
6 url = "https://github.com/nixos/nixpkgs/";
7 # `git ls-remote https://github.com/nixos/nixpkgs-channels nixos-20.09`
8 ref = "refs/heads/nixos-20.09";
9 rev = "69f3a9705014ce75b0489404210995fb6f29836e";