anchor.diff:  
           ${cfg.promptInit}
           ${bashCompletion}
  +        ${lsColors}
           ${bashAliases}
   
           ${cfge.interactiveShellInit}
  
positive.code:     fi
    '';
  
    bashAliases = concatStringsSep "\n" (
      mapAttrsFlatten (k: v: "alias ${k}=${escapeShellArg v}")
        (filterAttrs (k: v: v != null) cfg.shellAliases)
  
negative.code:         type = types.bool;
        };
  
        enableLsColors = mkOption {
          default = true;
          description = ''
            Enable extra colors in directory listings.
          '';
          type = types.bool;
        };
  
      };
  
    };
  