anchor.diff:  
     vim-vsnip = buildVimPluginFrom2Nix {
       pname = "vim-vsnip";
  -    version = "2020-08-31";
  +    version = "2020-09-02";
       src = fetchFromGitHub {
         owner = "hrsh7th";
         repo = "vim-vsnip";
  -      rev = "7bdd786c0ffe1f0876eabcd70daa15f82dc07af9";
  -      sha256 = "1bab231y2fcdnpi3fi3as79m2cx28d2drpy5iv77h5q1xgpz2jak";
  +      rev = "b4ea93fbcb578250da97722ca825a73a66c3d5c8";
  +      sha256 = "0zgy4q2b5fywqiv2chz3fly4liy8br2mdj1kf4m43b6pil77qpbi";
       };
       meta.homepage = "https://github.com/hrsh7th/vim-vsnip/";
     };
  
positive.code: 
    nvim-treesitter = buildVimPluginFrom2Nix {
      pname = "nvim-treesitter";
      version = "2020-08-31";
      src = fetchFromGitHub {
        owner = "nvim-treesitter";
        repo = "nvim-treesitter";
        rev = "5948aba886e8aad26043402684cf85c307813c4d";
        sha256 = "1x9pmxwm3lh5w7d22danp8r8g5hycxl1w8q8d1milx882qsjwnqa";
      };
      meta.homepage = "https://github.com/nvim-treesitter/nvim-treesitter/";
    };
  
negative.code:     meta.homepage = "https://github.com/iamcco/coc-spell-checker/";
    };
  
    coc-vimlsp = buildVimPluginFrom2Nix {
      pname = "coc-vimlsp";
      version = "2020-08-01";
  