#!/bin/bash
+# This will automatically upgrade to latest version at each build
+# nixpkgsNext="https://nixos.org/channels/nixos-19.03/nixexprs.tar.xz"
+nixpkgsNext="https://releases.nixos.org/nixos/19.03/nixos-19.03beta171840.23fd1394dc6/nixexprs.tar.xz"
+nixpkgsPrevious="$nixpkgsNext"
+nixpkgs="$nixpkgsNext"
+export NIX_PATH="nixpkgs=$nixpkgs:nixpkgsNext=$nixpkgsNext:nixpkgsPrevious=$nixpkgsPrevious"
nix-env -r -i -A immaePackages -f "<nixpkgs>" "$@"