anchor.diff: -{ config, pkgs, ... }:
  +{ config, pkgs, lib, ... }:
   
   let
     user = builtins.getEnv "USER";
  
positive.code:   linuxPackages = with pkgs; [
      coreutils
    ];
  
    # zsh theme
    zshThemeFile = builtins.readFile "${homeDir}/dotfiles/zsh/abiola.zsh-theme";
  
negative.code:   };
  
    # bat theme
    batTheme = builtins.readFile (pkgs.fetchFromGitHub
      {
        owner = "chriskempson";
        repo = "tomorrow-theme";
        rev = "de38ebc802bdc611c4404b5cd8db941dd6d2c171";
        sha256 = "sha256-9FDxDCObULfKGUDdvGTsbQMz+QSmGxG6e3IVaweUegA=";
      } + "/textmate/Tomorrow-Night.tmTheme");
  
    # dotnet env var
    dotnetRoot = "${pkgs.dotnet-sdk}";
  