anchor.diff:  
     goyo-vim = buildVimPluginFrom2Nix {
       pname = "goyo-vim";
  -    version = "2019-06-13";
  +    version = "2020-06-08";
       src = fetchFromGitHub {
         owner = "junegunn";
         repo = "goyo.vim";
  -      rev = "6b6ed2734084fdbb6315357ddcaecf9c8e6f143d";
  -      sha256 = "1ywlz1hn54kxyp5q0angriaarimq7ys7m6sk6l4x8jr1g2yh0afz";
  +      rev = "3e129198bba7d6b50406902002ad7d213a6cccaa";
  +      sha256 = "1b2wsxbg27nmwxrncwddkl2ck8hbiqdqi821vl9d1fl5nx042y2b";
       };
       meta.homepage = "https://github.com/junegunn/goyo.vim/";
     };
  
positive.code: 
    vim-anzu = buildVimPluginFrom2Nix {
      pname = "vim-anzu";
      version = "2018-02-28";
      src = fetchFromGitHub {
        owner = "osyo-manga";
        repo = "vim-anzu";
        rev = "45b60d37cb9de90f6c89f7ddeacb7ae430ebcae2";
        sha256 = "1p5lh4xsv9xsl8kx0h1bg6iy0if4a69hvairq69p50ffka83pv00";
      };
      meta.homepage = "https://github.com/osyo-manga/vim-anzu/";
    };
  
negative.code: 
    vim-spirv = buildVimPluginFrom2Nix {
      pname = "vim-spirv";
      version = "2020-06-12";
      src = fetchFromGitHub {
        owner = "kbenzie";
        repo = "vim-spirv";
        rev = "9b005a0569fa5e18f71fcccbacda227c1cef7eaa";
        sha256 = "0qby4bfjav2xijh732l7d2jli0adnv6cc8kcalbh5315vi4mpnfk";
      };
      meta.homepage = "https://github.com/kbenzie/vim-spirv/";
    };
  