anchor.diff:  
     deol-nvim = buildVimPluginFrom2Nix {
       pname = "deol-nvim";
  -    version = "2020-09-02";
  +    version = "2020-12-05";
       src = fetchFromGitHub {
         owner = "Shougo";
         repo = "deol.nvim";
  -      rev = "2c4d9117186a6cf86030d213ef2de60b5dbced19";
  -      sha256 = "1aka5zg7jihy1958xp4j2z3kdzmb2d4w5cbl95na4hik5rz4hyxj";
  +      rev = "af1094adf913538b1edd33e161a63a31d313b52d";
  +      sha256 = "0hyrm3mbmgfsqacyjpmasp7jsjjw82a8r6fivvz3vr10wsl5w8w3";
       };
       meta.homepage = "https://github.com/Shougo/deol.nvim/";
     };
  
positive.code: 
    nvim-tree-lua = buildVimPluginFrom2Nix {
      pname = "nvim-tree-lua";
      version = "2020-11-29";
      src = fetchFromGitHub {
        owner = "kyazdani42";
        repo = "nvim-tree.lua";
        rev = "9c3bc7d031527f0be6457c17215a131627ff6b9b";
        sha256 = "1q5gy8viw6jhs3dk0qplp1zp55si8zm0m4knsl3is5ab48hh9sry";
      };
      meta.homepage = "https://github.com/kyazdani42/nvim-tree.lua/";
    };
  
    nvim-treesitter = buildVimPluginFrom2Nix {
      pname = "nvim-treesitter";
      version = "2020-11-29";
      src = fetchFromGitHub {
        owner = "nvim-treesitter";
        repo = "nvim-treesitter";
        rev = "7cea2981444841403a5b85838edd26c390adcdb3";
        sha256 = "1sqd4r3csaqafhsihfxap9ldzq7p0h4g5ysazgsq6ckcc7ksf0wq";
      };
      meta.homepage = "https://github.com/nvim-treesitter/nvim-treesitter/";
    };
  
negative.code: 
    vim-floaterm = buildVimPluginFrom2Nix {
      pname = "vim-floaterm";
      version = "2020-11-30";
      src = fetchFromGitHub {
        owner = "voldikss";
        repo = "vim-floaterm";
        rev = "d7880f46f9b339f935e9912bb3f41c9b346ae992";
        sha256 = "1hyvfsjwpgyk5sgrr4zn8r0r530p1v3z8gz8a1dhjgpdykb90mpw";
      };
      meta.homepage = "https://github.com/voldikss/vim-floaterm/";
    };
  