# this version of nixpkgs contains liblapack at ?# this version of nixpkgs contains gsl at ?import(builtins.fetchGit{# Descriptive name to make the store path easier to identifyname="nixos-20.09";url="https://github.com/nixos/nixpkgs/";# `git ls-remote https://github.com/nixos/nixpkgs-channels nixos-20.09`ref="refs/heads/nixos-20.09";