The integrated GPU, Bluetooth and WiFi, internal sensors, and even the fingerprint reader can all be driven by the upstream Linux kernel. In fact, the hardware is so well understood that I have successfully used almost all of the laptop’s features on Linux, FreeBSD, NetBSD, Minix, Haiku, and Plan 9. Plan fucking 9. It can run coreboot, too. The back of the laptop has all of the screws (Phillips head) labelled so you know which to remove to service which parts. User replacable parts include the screen, keyboard (multiple layouts are available and are interchangeable), the RAM, hard drive (I put a new SSD in one of mine a few weeks ago, and it took about 30 seconds) — actually, there are a total of 26 replacable parts in this laptop.1 There is a detailed 278-page service manual to assist you or your local repair tech in addressing any problems that arise.