Using a tiny url (or any other) to provide code runs against the grain of the Monastery's guidelines... if you post here, it's going to be here for the next reader who wants to review it but when you post an off-site link, there's no assurance of its durability nor of its changelessness. Worse, this tiny url starts an automated download. That's the reason for my - -.
OTOH, since the 7-zip version on the project homepage is listed at a megabyte, even readmore tags would scarcely remove the curse of size.
Therefore, finger wagging in this node is confined to the tiny url -- for which I see no excuse -- and I'll throw in a "keep" vote on the consideration: even though the OP is clearly self-promotional, it's in an appropriate section, CUFP, and seems to me to constitute a notice of an interesting, Perl/Tk program.