Hard to tell, as I work at home, and so everything is mixed up. Although coding in Perl is not my primarily occupation, I do care to script in Perl when(ever) I can, but also launch MacPerl for fun and private use (along with AppleScript). So at first glance I couldn't decide which option to pick.

Now, as it is true that I code at a keyword and at 4am I am sleeping, well I picked the keyword option.

-- Ricardo
use MacPerl;