Yeah, I considered that. I even wrote the code in such a way that it supports that. But I'm concerned about the legality of distributing it. Given that it hits API endpoints that were expected to be private to the developers' app, giving away a "tool" that bypasses the app (which hosts ads, albeit for their other products, and so serves as a money-maker for the app's owner) could be illegal.
At the very least, it could be a violation of the terms of service or just an annoyance to the app developer, either of which could lead them to trying to stop me from doing it, which would be an inconvenience. So maybe I'll wait until after the trip, when the page becomes useless to me, and THEN open-source it!