anchor.diff:  
     plenary-nvim = buildVimPluginFrom2Nix {
       pname = "plenary-nvim";
  -    version = "2020-11-17";
  +    version = "2020-12-09";
       src = fetchFromGitHub {
         owner = "nvim-lua";
         repo = "plenary.nvim";
  -      rev = "7d555b5dad0376dd075e19f26e4e40705efe5dba";
  -      sha256 = "0c2i6lp17lgsrivacix1jcis2bh12wsg0hgmssdhmq8vr43q14sk";
  +      rev = "db44551d6c6db27b796eeb6d24615e176504c8da";
  +      sha256 = "09zf57czrzwjmnsbny20wzsxqix1vn5sidblryml95g7q89dzx7x";
       };
       meta.homepage = "https://github.com/nvim-lua/plenary.nvim/";
     };
  
positive.code: 
    last256 = buildVimPluginFrom2Nix {
      pname = "last256";
      version = "2017-06-10";
      src = fetchFromGitHub {
        owner = "sk1418";
        repo = "last256";
        rev = "d29320c1fe715b47edaa1be068201ea5a54ab0c0";
        sha256 = "16njh0p1j166dnf92110vlrj7gmrbsfkbkd8k6s9gfqjzbgd25jv";
      };
      meta.homepage = "https://github.com/sk1418/last256/";
    };
  
negative.code: 
    nvim-lspconfig = buildVimPluginFrom2Nix {
      pname = "nvim-lspconfig";
      version = "2020-12-09";
      src = fetchFromGitHub {
        owner = "neovim";
        repo = "nvim-lspconfig";
        rev = "0d919bc5f9b358a7a8a20df18dbc0d3a018e4c73";
        sha256 = "0w2qdsisb02h4jnbxxa2lpxc6x3v8ribz3ka4bidrcmlnd7jbmrs";
      };
      meta.homepage = "https://github.com/neovim/nvim-lspconfig/";
    };
  