anchor.diff:  
     playground = buildVimPluginFrom2Nix {
       pname = "playground";
  -    version = "2021-01-19";
  +    version = "2021-01-21";
       src = fetchFromGitHub {
         owner = "nvim-treesitter";
         repo = "playground";
  -      rev = "bcd83b5ce698e9ffdd27e64be16f04f0544ca047";
  -      sha256 = "0kmyx172v94m3193i3pmim79d6pk9zffbm50lvzpy7n0bi16608i";
  +      rev = "7e373e5706a2df71fd3a96b50d1f7b0c3e7a0b36";
  +      sha256 = "1vrfjv22whdmwna4xlvpsajx69fs8dkfwk0ji1jnvbyxmhki8mik";
       };
       meta.homepage = "https://github.com/nvim-treesitter/playground/";
     };
  
positive.code: 
    vim-snipmate = buildVimPluginFrom2Nix {
      pname = "vim-snipmate";
      version = "2021-01-13";
      src = fetchFromGitHub {
        owner = "garbas";
        repo = "vim-snipmate";
        rev = "a5b5dd46e9c2b796599ff4530e1c8d29fdd77945";
        sha256 = "05k6irv1p8kglznz9pfdzlb3qplf6y1k4x9qr3zcidv79hldg0b5";
      };
      meta.homepage = "https://github.com/garbas/vim-snipmate/";
    };
  
negative.code: 
    far-vim = buildVimPluginFrom2Nix {
      pname = "far-vim";
      version = "2021-01-21";
      src = fetchFromGitHub {
        owner = "brooth";
        repo = "far.vim";
        rev = "b3e7b62ef6820ccdcbdc6070f3573b658aafba43";
        sha256 = "0lf2vlsyk4ymhyscnpla417hvh6qdi8cablammnc5vsk1hmqvc3i";
      };
      meta.homepage = "https://github.com/brooth/far.vim/";
    };
  