anchor.diff:  
     nightfox-nvim = buildVimPluginFrom2Nix {
       pname = "nightfox.nvim";
  -    version = "2021-10-21";
  +    version = "2021-10-23";
       src = fetchFromGitHub {
         owner = "EdenEast";
         repo = "nightfox.nvim";
  -      rev = "fb46cbf616470707fac1232d135c0bd69906249d";
  -      sha256 = "0lia11ni3q3ixjhngnhyrz4s33f19p784y22x3vxi0nvnibj6c40";
  +      rev = "21935c25fe681d43e381d49b0a44c9298d204841";
  +      sha256 = "0d1ims59a90avd45338m02219pmplnadssksa24r03h3kh4x5pdi";
       };
       meta.homepage = "https://github.com/EdenEast/nightfox.nvim/";
     };
  
positive.code: 
    nvim-tree-lua = buildVimPluginFrom2Nix {
      pname = "nvim-tree.lua";
      version = "2021-10-16";
      src = fetchFromGitHub {
        owner = "kyazdani42";
        repo = "nvim-tree.lua";
        rev = "ec3f10e2116f344d9cc5c9980bddf7819f27d8ae";
        sha256 = "0vwlxghxyc82w2vmn6nylnvhcvr91k9z0szjwn67f8n1bnii2fn7";
      };
      meta.homepage = "https://github.com/kyazdani42/nvim-tree.lua/";
    };
  
negative.code: 
    nnn-vim = buildVimPluginFrom2Nix {
      pname = "nnn.vim";
      version = "2021-10-23";
      src = fetchFromGitHub {
        owner = "mcchrish";
        repo = "nnn.vim";
        rev = "de9dced7f0b10dde5938f53643baa3586b7941d8";
        sha256 = "0sdqgivlsjl5558dyakrh7vzpcnwkma5paz4i8zis1cj3zc0s78p";
      };
      meta.homepage = "https://github.com/mcchrish/nnn.vim/";
    };
  