anchor.diff:  
     playground = buildVimPluginFrom2Nix {
       pname = "playground";
  -    version = "2020-12-17";
  +    version = "2021-01-19";
       src = fetchFromGitHub {
         owner = "nvim-treesitter";
         repo = "playground";
  -      rev = "0cba1b99cd6cfcd0379e57c317ea1df0c1c82b3a";
  -      sha256 = "1xs2g7inlmcjchzzmsa4qh1mf61xz6gdn96mzfkr8fs65g78861b";
  +      rev = "4a11cf237a6e505feb747f6097d48bf0195888b3";
  +      sha256 = "0d9xm63spsaa580n2nyqiiq2p81ilmm0dwzqg6jhw9c020r5rzg1";
       };
       meta.homepage = "https://github.com/nvim-treesitter/playground/";
     };
   
     plenary-nvim = buildVimPluginFrom2Nix {
       pname = "plenary-nvim";
  -    version = "2021-01-11";
  +    version = "2021-01-18";
       src = fetchFromGitHub {
         owner = "nvim-lua";
         repo = "plenary.nvim";
  -      rev = "e9b81e2bb98e00e9f6ca2b6a698cc8452fe2943e";
  -      sha256 = "00j5gnx5jgrx7qmbxhrjsrdzp9krc5c7zij9a25jhz3l2j98xpdg";
  +      rev = "fecbbd23e425db8cc60b85d8298f02935d69940d";
  +      sha256 = "0q5hsg2rlzhldr221krvxppspdl04rj5qbiq3nk1a25nf5r24d0z";
       };
       meta.homepage = "https://github.com/nvim-lua/plenary.nvim/";
     };
  
positive.code: 
    Coqtail = buildVimPluginFrom2Nix {
      pname = "Coqtail";
      version = "2021-01-15";
      src = fetchFromGitHub {
        owner = "whonore";
        repo = "Coqtail";
        rev = "50c34a24bb6638fdf8f604f75cd036ec5252864d";
        sha256 = "1b5cs4yznz8vcmba6vk67kpd6071cz1m5jbfjpvyinvld5ipnapn";
      };
      meta.homepage = "https://github.com/whonore/Coqtail/";
    };
  
negative.code: 
    vim-clap = buildVimPluginFrom2Nix {
      pname = "vim-clap";
      version = "2021-01-19";
      src = fetchFromGitHub {
        owner = "liuchengxu";
        repo = "vim-clap";
        rev = "7442976f0c5dea79f8cfb342e7abb25cea9a8daa";
        sha256 = "1gzc800i4zsxav4h7smqgapnrallarbgrq9arfhydrq41hy2h6wr";
      };
      meta.homepage = "https://github.com/liuchengxu/vim-clap/";
    };
  