As of firmware v03.03, a bug in the EC causes the system to wake if AC is connected _despite_ the lid being closed. The following works around this, with the trade-off that keyboard presses also no longer wake the system.
```nix
services.udev.extraRules = ''
# Prevent wake when plugging in AC during suspend. Trade-off: keyboard wake disabled. See:
See [Framework AMD Ryzen 7040 Series lid wakeup behavior feedback](https://community.frame.work/t/tracking-framework-amd-ryzen-7040-series-lid-wakeup-behavior-feedback/39128/45).