system/nixos/shared/headless.nix

{ inputs, ... }:

{
  imports = [
    "${inputs.nixpkgs}/nixos/modules/profiles/headless.nix"
  ];

  # Fix for GLIBC errors due to 'scudo' from hardened profile.
  # https://github.com/NixOS/nix/issues/6563
  environment.memoryAllocator.provider = "libc";
  # Disabled by hardened profile, big performance hit.
  security.allowSimultaneousMultithreading = true;

  boot.tmp.cleanOnBoot = true;
  zramSwap.enable = true;
}