anchor.diff:  
     vim-obsession = buildVimPluginFrom2Nix {
       pname = "vim-obsession";
  -    version = "2019-11-16";
  +    version = "2020-01-19";
       src = fetchFromGitHub {
         owner = "tpope";
         repo = "vim-obsession";
  -      rev = "c44d3c432243d39469046f4e25d38a690e49c755";
  -      sha256 = "0bvml6jcjd986ggx63sf9w4h852ivnshw6ilf6x2grfhnvsdgcgs";
  +      rev = "96a3f837c112cb64e0a9857b69f6d6a71041155e";
  +      sha256 = "11h7jyg7fhjmq3pmpc93nrsxm175ra14407rs3558h8p04snc159";
       };
     };
   
  
positive.code: 
    vim-plug = buildVimPluginFrom2Nix {
      pname = "vim-plug";
      version = "2020-01-06";
      src = fetchFromGitHub {
        owner = "junegunn";
        repo = "vim-plug";
        rev = "2f5f74e5e67f657e9fdac54891a76721bcd3ead3";
        sha256 = "08772rc8wqpbxwqqkl8v9x79sijkdigypqlr12ph7jc45qfdqblp";
      };
    };
  
  
negative.code: 
    vim-subversive = buildVimPluginFrom2Nix {
      pname = "vim-subversive";
      version = "2020-01-22";
      src = fetchFromGitHub {
        owner = "svermeulen";
        repo = "vim-subversive";
        rev = "634791f5f61aaf49ce16df2698f99a2847f6318e";
        sha256 = "0hr794fn7b5zka3whk3hwh4hznv6y3a19ffsdbgdywr70wwb5grf";
      };
    };
  
  