anchor.diff:  
     nvim-bufferline-lua = buildVimPluginFrom2Nix {
       pname = "nvim-bufferline-lua";
  -    version = "2021-04-07";
  +    version = "2021-04-20";
       src = fetchFromGitHub {
         owner = "akinsho";
         repo = "nvim-bufferline.lua";
  -      rev = "224f2627c471f319626fc7c1ab85f9d7d91bb98a";
  -      sha256 = "0yxby3p82pjkz8n0vnavbhw0qlva8mfq3nqff4bf1sg9iw0jpfkm";
  +      rev = "4ebab39af2376b850724dd29c29579c8e024abe6";
  +      sha256 = "0k671d27m2p0lv4vr99lra740511234f8m6zl2ykkb1b197841cg";
       };
       meta.homepage = "https://github.com/akinsho/nvim-bufferline.lua/";
     };
  
positive.code: 
    telescope-nvim = buildVimPluginFrom2Nix {
      pname = "telescope-nvim";
      version = "2021-04-17";
      src = fetchFromGitHub {
        owner = "nvim-telescope";
        repo = "telescope.nvim";
        rev = "f92b9b1fae70d5fac681a29f0df64549c399f18f";
        sha256 = "176h2sy75hgykzw5kf1vhp29gxk180c3a1rl8rcms8vinn1b95d3";
      };
      meta.homepage = "https://github.com/nvim-telescope/telescope.nvim/";
    };
  
negative.code: 
    defx-nvim = buildVimPluginFrom2Nix {
      pname = "defx-nvim";
      version = "2021-04-21";
      src = fetchFromGitHub {
        owner = "Shougo";
        repo = "defx.nvim";
        rev = "3730b008158327d0068b8a9b19d57fd7459bb8b9";
        sha256 = "0bc1gfwsms0mrxjfp7ia4r2rw1b95ih8xgkh02l9b30wp81xdfr3";
      };
      meta.homepage = "https://github.com/Shougo/defx.nvim/";
    };
  