anchor.diff:      trial --rterrors allmydata
     '';
   
  -  meta = {
  +  meta = with lib; {
       description = "Tahoe-LAFS, a decentralized, fault-tolerant, distributed storage system";
       longDescription = ''
         Tahoe-LAFS is a secure, decentralized, fault-tolerant filesystem.
  
positive.code:       such a way that it remains available even when some of the peers
        are unavailable, malfunctioning, or malicious.
      '';
      homepage = "http://tahoe-lafs.org/";
      license = [ lib.licenses.gpl2Plus /* or */ "TGPPLv1+" ];
      maintainers = with lib.maintainers; [ MostAwesomeDude ];
      platforms = lib.platforms.gnu ++ lib.platforms.linux;
    };
  }
  
negative.code: # some loss of functionality because of it.
  
  python3Packages.buildPythonApplication rec {
    pname = "tahoe-lafs";
    version = "unstable-2021-07-09";
  
    src = fetchFromGitHub {
      owner = "tahoe-lafs";
  