https://mergecal.org - First project I built when learning Django a couple years back. Takes multiple iCal feed URLs, merges them into one feed. Turns out people actually need this!

cool project, but what on earth is going on with scrolling and back button?

I almost built something like this a short time ago. Some devices/softwares (in my case it was the Supernote calendar app) only allow for one calendar as a source, and I had to merge my work and personal calendars to show up in my device. :)