If You Want To Build A Website, First You Must Build A Router
Once again, I have fallen into the trap of "why pay $5 to do something easily when I can try to do it myself, end up spending $50, and fail anyway?"
I discovered late last night that yesterday's work was for naught. It appears that my Raspberry Pi server can only be accessed from my local network because of, uh, firewalls or something?

As far as I can tell, everything at the server level works fine, so something at the router level is blocking external networks. And after a lot of Googling,
