The article discusses the implementation of S0ix, a modern standby feature for power savings on FreeBSD. It explains the transition from ACPI S3 to S0ix, which allows systems to enter a low-power state while remaining in the S0 global state. Key points include the differences between S3 and S0ix, how to check if a laptop supports S0ix, and the progress made so far in enabling S0ix on FreeBSD. The article also covers debugging techniques, vendor-specific complications (e.g., AMD), and future steps such as achieving full S0i3 support and testing on Intel platforms. Additionally, it mentions related features like hibernation (S4) and hybrid suspend.