Consider adding .netconfig support

[kzu]

Would be nice to be able to save the list of packages to .netconfig, such as:

[grab]
  package = [email protected]
  package = [email protected]

This would mean that you could restore those files later on with a single parameterless command from that point on.
The .netconfig could be committed to source control even and restored on repo clone/init.

That same file could also hold the target dir parameter too:

[grab]
  target = src\\packages
  ...