nix-env -u:
error: anonymous function at /nix/store/c4f3k19s9wsjj5fa7h8skcz8s9cwk74p-nixos-20.09.1721.896270d629e/nixos/pkgs/applications/misc/polybar/default.nix:1:1 called with unexpected argument 'networkSupport', at /nix/store/c4f3k19s9wsjj5fa7h8skcz8s9cwk74p-nixos-20.09.1721.896270d629e/nixos/lib/customisation.nix:69:16
