anchor.diff:  
     null-ls-nvim = buildVimPluginFrom2Nix {
       pname = "null-ls-nvim";
  -    version = "2021-07-24";
  +    version = "2021-07-29";
       src = fetchFromGitHub {
         owner = "jose-elias-alvarez";
         repo = "null-ls.nvim";
  -      rev = "52286ee4d11016b3366481935c12211c44d43777";
  -      sha256 = "0lf0d2b2yajjv39l9zy0h5cmrnah8ig7fk3ckmlpvcfhrlqry9j8";
  +      rev = "7c50ca73dc2f89b128f1c42a4e04144d1213e7dc";
  +      sha256 = "1qd7hmsxcn6w5fvqn28nb48xp33nl2hzgvh0fy12mzyq39d0n6ld";
       };
       meta.homepage = "https://github.com/jose-elias-alvarez/null-ls.nvim/";
     };
  
positive.code: 
    vimtex = buildVimPluginFrom2Nix {
      pname = "vimtex";
      version = "2021-07-24";
      src = fetchFromGitHub {
        owner = "lervag";
        repo = "vimtex";
        rev = "d1439f47a481b8665fbfa8511c6ae4e7514bdfc7";
        sha256 = "0brs97yhnfbkyyz6fzhs7s7kjwgwrw6kkinyycq51idxqdqvk4s8";
      };
      meta.homepage = "https://github.com/lervag/vimtex/";
    };
  
negative.code: 
    luasnip = buildVimPluginFrom2Nix {
      pname = "luasnip";
      version = "2021-07-25";
      src = fetchFromGitHub {
        owner = "l3mon4d3";
        repo = "luasnip";
        rev = "631a1551c9e0d983e9545d37c79fb024f4680a83";
        sha256 = "0jiq37bfn8wpbrk62xrknglfkh3hbsx325crgg7amsk0bkhi8nav";
      };
      meta.homepage = "https://github.com/l3mon4d3/luasnip/";
    };
  