I’m building an SOS button for my mother. To do this, I’m using two Raspberry Pis connected through a Tailscale tunnel. When the button is pressed, an SSH command is sent to the other Raspberry Pi, which plays an MP3 loudly through speakers. At the same time, a Telegram alert is sent to our family channel. I often have my phone on silent at night — but now, no problem: the speakers will shout loudly! I’m coming, Mom! 👸🏻