anchor.diff:  
     zig-vim = buildVimPluginFrom2Nix {
       pname = "zig-vim";
  -    version = "2021-03-16";
  +    version = "2021-04-07";
       src = fetchFromGitHub {
         owner = "ziglang";
         repo = "zig.vim";
  -      rev = "33b62b688ef4f0b3810c4d3d1b3901f572488691";
  -      sha256 = "0dsc1h8ih5jgfni5szm8dby368naxh3igndm80yrciy2glcj1ayn";
  +      rev = "fc32adfada0fac7a2f6088672e177d410c9e3ae1";
  +      sha256 = "051l2dig6861xzl6zg41d6a776jhms7v6a86cap1ipd2rxkqh5yh";
       };
       meta.homepage = "https://github.com/ziglang/zig.vim/";
     };
  
positive.code: 
    barbar-nvim = buildVimPluginFrom2Nix {
      pname = "barbar-nvim";
      version = "2021-04-02";
      src = fetchFromGitHub {
        owner = "romgrk";
        repo = "barbar.nvim";
        rev = "9c80bfbce9f9b2bdbb42ad9cebfeba6a3dd9a9a8";
        sha256 = "10dln43kjafj7vaf7s2yvxvc1vaga7rygnl4819275ardjpgddgs";
      };
      meta.homepage = "https://github.com/romgrk/barbar.nvim/";
    };
  
negative.code:     src = fetchFromGitHub {
        owner = "lewis6991";
        repo = "gitsigns.nvim";
        rev = "5be4faafe18dc808878e127d69b9cd1883b03bee";
        sha256 = "0k0z9bgrcidk8m1lckh3kkz0i6w6whrlc22v4vf8yfkqa8g7vai1";
      };
      meta.homepage = "https://github.com/lewis6991/gitsigns.nvim/";
    };
  