server on port 80

Hi all,
is it possible to securely run the server on port 80 ?

I'd prefer not to have to remember (and get my family to remember) the port number.

I know that this used to mean running things as root

But setcap utilities can now allow non-root users to bind to low numbered port on specific binaries

as per this example from apache (which I cant link to as this is my first post here)

cwiki.apache.org/confluence/display/HTTPD/NonRootPortBinding

I've used this successfully for compiled work where it's easy enough to run setcap on the resultant binary

I'm not quite sure if it works the same for perl

I have tried

But I'm not sure where the port is specified in the server code - I cant see it in config

/usr/share/perl5/Slim/Utils/Prefs.pm has a line 'httpport' => 9000,

But editing this doesn't seem to do what I want.

So questions :

1) Is trying to run the service on port 80 a bad idea for any reason

2) Am I editing in teh right place - or what do I need to do to change 9000 to port 80

Thanks

(I've been running this system for a decade or so but never tried to tinker before - Perl isn't really my thing - but web dev is)