This is a nix plugin built upon the lix package manager. It is intended that the experimental feature lix-custom-sub-commands which provides access to the lix command which allows for custom sub-commands to be used.

Get it from nixpkgs:

nix profile install nixpkgs#lix-diff

Or get it from the flake:

nix profile install github:isabelroses/lix-diff

The example below demonstrates the usage of the lix diff command.

lix diff /nix/var/nix/profiles/system-95-link/ /run/current-system

Without the experimental feature enabled, the command can be called via

lix-diff /nix/var/nix/profiles/system-95-link/ /run/current-system