anchor.diff:  
     vim-lawrencium = buildVimPluginFrom2Nix {
       pname = "vim-lawrencium";
  -    version = "2019-04-10";
  +    version = "2020-10-10";
       src = fetchFromGitHub {
         owner = "ludovicchabant";
         repo = "vim-lawrencium";
  -      rev = "e0c127cb4e4224453cb88faffd4627b7da499bcb";
  -      sha256 = "1gvvr04x17157iz83rv45nlbj1qaz90j0l96q3fki3h1b0fw0099";
  +      rev = "4592f24a50386e02870fa8d508cc7ba8454dc102";
  +      sha256 = "158hslq4chlqr9mhdpcrbxnygjk4j1pc2caqc3zrwqh9qdk8mvha";
       };
       meta.homepage = "https://github.com/ludovicchabant/vim-lawrencium/";
     };
  
positive.code: 
    nerdtree = buildVimPluginFrom2Nix {
      pname = "nerdtree";
      version = "2020-08-18";
      src = fetchFromGitHub {
        owner = "preservim";
        repo = "nerdtree";
        rev = "577ddc73f0a1d2fd6166ed3268ab8536111037e0";
        sha256 = "0bccr18nr42vwbb4i765yxjw18piyiyd12sm4snbkkxahp9yswf7";
      };
      meta.homepage = "https://github.com/preservim/nerdtree/";
    };
  
    nerdtree-git-plugin = buildVimPluginFrom2Nix {
      pname = "nerdtree-git-plugin";
      version = "2020-09-25";
      src = fetchFromGitHub {
        owner = "Xuyuanp";
        repo = "nerdtree-git-plugin";
        rev = "85c4bed898d2d755a2a2ffbfc2433084ce107cdd";
        sha256 = "1m8s5x30k875812fbznvbq3pch5jpy29jr5rpzr0pr2ni5wkv6a4";
      };
      meta.homepage = "https://github.com/Xuyuanp/nerdtree-git-plugin/";
    };
  
negative.code: 
    vim-pandoc-syntax = buildVimPluginFrom2Nix {
      pname = "vim-pandoc-syntax";
      version = "2020-10-24";
      src = fetchFromGitHub {
        owner = "vim-pandoc";
        repo = "vim-pandoc-syntax";
        rev = "2521e2e9b99a3550e1a20f24e09fa46679cbbbc7";
        sha256 = "02023bnvc9m98m45krld1b7gy13z335jv88fx4ybz019wc0mv35g";
      };
      meta.homepage = "https://github.com/vim-pandoc/vim-pandoc-syntax/";
    };
  