anchor.diff:    environment.shellAliases.gcm = "git commit -m";
     environment.shellAliases.gco = "git checkout";
     environment.shellAliases.vi = "nvim";
  +  environment.shellAliases.v = "f -e nvim";
  +  environment.shellAliases.j = "f";
   
     system.activationScripts.postActivation.text = ''
       rm -f "$HOME/.zgen/init.zsh" # reset zgen
  
positive.code: 
        # vim undo dir
        mkdir -p $HOME/.vim/undodir
      '';
    };
    programs.nix-index.enable = true;
  
negative.code:       pkgs.jq
        pkgs.fd
        pkgs.rustup
        pkgs.fasd
        my-neovim
      ];
  
  