How to pages:

• Automatically turn ON and OFF a touch monitor - Via DDC/CI protocol, based on activity in X11 using XSS lib, on Raspberry Pi 5
  Guide on how to setup automatic on and off of a touch screen for power saving, without a blue screen on a loss of HDMI signal.
• Flash Sonoff ZBDongle-E as router under NixOS
  Sonoff ZBDongle-E is quite powerful Zigbee dongle. By default, it's loaded with coordinator firmware. This how to article contains steps cheatsheet to flash it with router firmware under NixOS.