anchor.diff:  
     packer-nvim = buildVimPluginFrom2Nix {
       pname = "packer.nvim";
  -    version = "2021-11-03";
  +    version = "2021-11-30";
       src = fetchFromGitHub {
         owner = "wbthomason";
         repo = "packer.nvim";
  -      rev = "7f62848f3a92eac61ae61def5f59ddb5e2cc6823";
  -      sha256 = "1sgrwm271pnvw9anl1y8x94bz0w7qvi3bdiqh1wpwvsqic73frq3";
  +      rev = "db3c3e3379613443d94e677a6ac3f61278e36e47";
  +      sha256 = "0zn6a11j2fp8lmc6kkkmi5nmz4xmrnrymdxpzrxmq8a5iw9cg2bg";
       };
       meta.homepage = "https://github.com/wbthomason/packer.nvim/";
     };
  
positive.code: 
    deol-nvim = buildVimPluginFrom2Nix {
      pname = "deol.nvim";
      version = "2021-11-06";
      src = fetchFromGitHub {
        owner = "Shougo";
        repo = "deol.nvim";
        rev = "feb1269a56628accc1ec74f4d5e0ea91b80fe9f9";
        sha256 = "0nnbj538vd99rb4cjfs6xxx6c1n7aflpw92zkz9if1xhfw4jqfzc";
      };
      meta.homepage = "https://github.com/Shougo/deol.nvim/";
    };
  
negative.code: 
    nvim-notify = buildVimPluginFrom2Nix {
      pname = "nvim-notify";
      version = "2021-11-30";
      src = fetchFromGitHub {
        owner = "rcarriga";
        repo = "nvim-notify";
        rev = "36012703049bc7be9d4de97cb96c6d17ccf978cd";
        sha256 = "0gv3czqrcbbyvcvhz3lb0xzyc2agxf20wgc0mxwsvcn9339ymzmw";
      };
      meta.homepage = "https://github.com/rcarriga/nvim-notify/";
    };
  