anchor.diff:  
     vim-test = buildVimPluginFrom2Nix {
       pname = "vim-test";
  -    version = "2021-12-20";
  +    version = "2021-12-21";
       src = fetchFromGitHub {
         owner = "vim-test";
         repo = "vim-test";
  -      rev = "74693c21eada4da2173774b1ed24705c28c244c3";
  -      sha256 = "138j06jlxhnspmnc2jz46gkm6kwjyxmp2kq6gsrf22c10vv2gdcg";
  +      rev = "2d240b96221a8ef2cf2ed9db59f14c5871df80f0";
  +      sha256 = "1yc4mjhx2vv6ybpn9yblg4zfv7cmf2glsvvr1a5wsq0w0mn3yv69";
       };
       meta.homepage = "https://github.com/vim-test/vim-test/";
     };
  
positive.code: 
    vim-sleuth = buildVimPluginFrom2Nix {
      pname = "vim-sleuth";
      version = "2021-12-19";
      src = fetchFromGitHub {
        owner = "tpope";
        repo = "vim-sleuth";
        rev = "84408b75ac028f6febce3d5c1761f1b93a345d1e";
        sha256 = "04c458q6ig3n000z0xyb8ywgm3yh18z3z5m8cyp6yvwyjihy9w03";
      };
      meta.homepage = "https://github.com/tpope/vim-sleuth/";
    };
  
negative.code: 
    vim-dadbod-completion = buildVimPluginFrom2Nix {
      pname = "vim-dadbod-completion";
      version = "2021-12-21";
      src = fetchFromGitHub {
        owner = "kristijanhusak";
        repo = "vim-dadbod-completion";
        rev = "10064d526001d98b6454235644e3e586b566f26d";
        sha256 = "07vlg4w9x0xs4xag02pyxram94mvizipwya7p6vg7s3rznj0bipd";
      };
      meta.homepage = "https://github.com/kristijanhusak/vim-dadbod-completion/";
    };
  