anchor.diff:  
     deoplete-nvim = buildVimPluginFrom2Nix {
       pname = "deoplete-nvim";
  -    version = "2021-01-08";
  +    version = "2021-01-12";
       src = fetchFromGitHub {
         owner = "Shougo";
         repo = "deoplete.nvim";
  -      rev = "0901b1886208a32880b92f22bf8f38a17e95045a";
  -      sha256 = "0r66sjkgbbhgdalqnfyzy3ym3jiikyd10pi5236aqga75vysvk0s";
  +      rev = "4c5acd271591c4b5e5420ce05c2b20eb7beb08e3";
  +      sha256 = "1vy3n81y7f535adyplmy3pvvsgjdzrxcfqlzrwz62r4bspqqf42r";
       };
       meta.homepage = "https://github.com/Shougo/deoplete.nvim/";
     };
  
positive.code: 
    calendar-vim = buildVimPluginFrom2Nix {
      pname = "calendar-vim";
      version = "2020-12-30";
      src = fetchFromGitHub {
        owner = "itchyny";
        repo = "calendar.vim";
        rev = "1d352606aa4f9cf3116514669533b314f6e800a0";
        sha256 = "16m7zpw5i2bjxj771856wahfk4y6rhk3qb0jifblma219gnqmhz4";
      };
      meta.homepage = "https://github.com/itchyny/calendar.vim/";
    };
  
negative.code: 
    telescope-nvim = buildVimPluginFrom2Nix {
      pname = "telescope-nvim";
      version = "2021-01-12";
      src = fetchFromGitHub {
        owner = "nvim-telescope";
        repo = "telescope.nvim";
        rev = "57012550977679925176819345adc4d0dce85a00";
        sha256 = "002c120ppz8g6xiqckq61nbr7zcfdh5n75hhzbcn0xqlagmi9p6y";
      };
      meta.homepage = "https://github.com/nvim-telescope/telescope.nvim/";
    };
  