XAMPP Remote Access (from another building)

[thedudeabides]

Hi

So I've recently set up XAMPP on my iMac in order to test out some features that required PHP. I would like to be able to let my friend, who I am designing the site for, also look at these features. Would it be possible for them to access my XAMPP from their home PC?

I am very new to all this, so sorry if this is a stupid question!

Thanks