The nixpkgs manual section 2.6 describes how to build an environment.
When looking to upgrade the current system I’ll typically do this:
nix-channel --update nix-env -qc # see what version updates are available nix-env --upgrade. #perform upgrades
But for a buildEnv like
myPackages such as that suggested by the manual doesn’t show the packages contained within it nor the upgrade versions available for that env.
Is there a way to do this?