This week I added a timer for calls, and the phone now vibrates when a call comes in.
I also recorded a video demo with voice commentary. In hindsight I could have planned it better, but I'm too lazy to rerecord it. Unlike my previous videos, this one is hosted on YouTube, because I thought it unwise to host a >100MB video on a VPS with a 1TB/month bandwidth limit.
I recommend using
Here's a link: https://youtu.be/WJaFkxEUWhc