If i recall, the following will work :

our @EXPORT = keys %devbox::;
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You were very close, but the qw// was non-interpolated. While this does work, i do not suggest doing such things. It is usually better, in my opinion, to create a real module and distribute, rather than copy/paste ... but, just my $0.02

update : Added disclaimer.

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$ perl -e 'do() || ! do() ;'
Undefined subroutine &main::try
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