The author is refreshingly transparent about the inspiration for the project saying, "I built this on a whim at after seeing someone ask for it on twitter."
Who knows, maybe you'll stumble upon sth to build in the same way.
Thank you!
I've built a lot of apps, and I've gone viral a fair number of times, but I haven't done both at the same time.
I can pinpoint to you the exact tweet (well it's technically a retweet) and you can see what gave me the inspiration. For quite a lot of people the two tweets showed up side by side, which is even funnier.
Who knows, maybe you'll stumble upon sth to build in the same way.