Add system/machine/{T400,MacPro31}/README.md covering the placeholder
hardware-configuration regeneration, partition labels, bootloader selection
(T400 boot variants; Mac Pro EFI quirks), and GPU notes. Link each from its
configuration.nix header, and refresh the top-level README host table (T400
replaces X1, Mac Pro 3,1 added) with links to both.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
- lyrathorpe-t400 replaces lyrathorpe-x1c: ThinkPad T400 (legacy BIOS -> GRUB,
Intel microcode + redistributable firmware for iwlwifi, pipewire, sshd).
- lyrathorpe-macpro31: new desktop host (portable = false) importing
desktop.nix. Mac Pro 3,1 has 64-bit EFI -> systemd-boot; wired NetworkManager
via desktop.nix; desktop status bar (temperature + net, no battery).
Both ship hand-written placeholder hardware-configuration.nix (root/swap/ESP by
label, GRUB device /dev/sda) to be regenerated with nixos-generate-config and
committed at install time. All five host configs evaluate; nixfmt clean.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Emma Thorpe