[nixos]
-url = https://channels.nixos.org/nixos-20.03
+channel_url = https://channels.nixos.org/nixos-20.03
git_repo = https://github.com/NixOS/nixpkgs.git
git_ref = nixos-20.03
+
+[nixos-hardware]
+git_repo = https://github.com/NixOS/nixos-hardware.git
+git_ref = master
+