I played a little with the various graph related modules on CPAN.
Without much intervention, none could handle the massive dependency
chain which is generated using Module::ScanDeps.
This is unlikely to ever become a feature of Module::ScanDeps, but it's
an interesting idea, so I'll keep it in the queue for all to see.
However, I'll mark it as stalled in terms of Module::ScanDeps.
Cheers,
Steffen