Files
nixfiles/system/modules/common-nixos.nix
T
Emma Thorpe 6356e07364 feat(nixos): disk hygiene, dedupe shared options, fix MacPro docs
- common-nixos: nix.settings.auto-optimise-store + larger download buffer.
- workstation: fstrim, boot.tmp.cleanOnBoot, and the shared graphical
  options moved here from the per-host configs (pipewire, swaylock PAM
  stub, redistributable firmware) -- MBP-Asahi gains audio it lacked.
- T400: zramSwap for the low-RAM host.
- MBP-Asahi: nixos-apple-silicon binary cache substituter.
- MacPro31 README: describe the real (LVM/UUID) hardware config; it is no
  longer a placeholder.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-10 14:56:58 +01:00

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Nix

# Options shared by every NixOS host (laptops and the WSL box). Imported via
# baseModules in flake.nix. Host- and platform-specific settings stay in the
# per-machine configs; laptop-only settings live in ./laptop.nix.
{ pkgs, ... }:
{
time.timeZone = "Europe/London";
i18n.defaultLocale = "en_GB.UTF-8";
# Store hygiene. auto-optimise-store hard-links identical files in the store
# after each build (cheap dedupe; NOT a garbage collector -- there is
# deliberately no automatic GC timer). The larger download buffer avoids
# "buffer full" stalls when fetching big NARs over a fast link.
nix.settings.auto-optimise-store = true;
nix.settings.download-buffer-size = 134217728; # 128 MiB
# Minimal system-level CLI available before the home-manager profile loads
# (e.g. early boot / rescue). User-level tooling lives in home-manager.
environment.systemPackages = with pkgs; [
git
fastfetch
];
# Terminal font with powerline/Nerd glyphs. Installed on every host because
# the tmux statusline (which uses these glyphs) runs everywhere, not just on
# the Sway/graphical hosts. foot names it explicitly (home/sway.nix); the Mac
# installs it via the Darwin config.
fonts.packages = [ pkgs.nerd-fonts.jetbrains-mono ];
}