anchor.diff:  
     vim-choosewin = buildVimPluginFrom2Nix {
       pname = "vim-choosewin";
  -    version = "2019-09-17";
  +    version = "2021-04-06";
       src = fetchFromGitHub {
         owner = "t9md";
         repo = "vim-choosewin";
  -      rev = "f91cdb9be92ce3bb9bccba16e8c659d5e8d7454f";
  -      sha256 = "1nq1vpwv6h5sc849y26nzkrmr9w3aj6w32apyih9kx0jh4ybv0xs";
  +      rev = "1ca7da94aa1b8761f4212194e3c55e4a080d6525";
  +      sha256 = "0nr6k8g0l27g4lczsy30cnh1il547qgbs4xl936v43gp4wvybah4";
       };
       meta.homepage = "https://github.com/t9md/vim-choosewin/";
     };
  
positive.code: 
    vim-kitty-navigator = buildVimPluginFrom2Nix {
      pname = "vim-kitty-navigator";
      version = "2021-03-27";
      src = fetchFromGitHub {
        owner = "knubie";
        repo = "vim-kitty-navigator";
        rev = "b417bfd95d573254de7dbc4efd2ee12301f2e4a1";
        sha256 = "0ai14s0a2i5xiak2n102ji9nhhv3lgkr32prcdl9snfybniy9l7b";
      };
      meta.homepage = "https://github.com/knubie/vim-kitty-navigator/";
    };
  
negative.code: 
    nerdtree-git-plugin = buildVimPluginFrom2Nix {
      pname = "nerdtree-git-plugin";
      version = "2021-04-02";
      src = fetchFromGitHub {
        owner = "Xuyuanp";
        repo = "nerdtree-git-plugin";
        rev = "73da0283ead8fa2bbce83d219fcab3ba1e8cf0dd";
        sha256 = "17n79pmpnjnp6nirz4m4wwgfacrg26bdzjn4xj8i6ldkff5n20km";
      };
      meta.homepage = "https://github.com/Xuyuanp/nerdtree-git-plugin/";
    };
  