~/.macports

[Jeremy Lavergne]

>> I take it there is no official way to define the permissions mask for a
>>  macports user that would allow an admin user full control over content
>>  owned by the macports user (but not the reverse)?
>
>
> Not sure you can make extended ACLs propagate the right way.

The old school option is creating a common group for both users and have
appropriate umasks.

However, if you're the admin user sudo is already available.