nixos/profiles/builder.nix

   1 { lib, inputs, ... }:
   2 {
   3   nix.settings.experimental-features = [ "nix-command" "flakes" "repl-flake" ];
   4   #nix.registry.self.flake = inputs.self;
   5   nix.nixPath = [
   6     "nixpkgs=${inputs.nixpkgs}"
   7   ];
   8
   9   systemd.services.nix-daemon.serviceConfig = {
  10     CPUSchedulingPolicy = lib.mkForce "batch";
  11     IOSchedulingClass = lib.mkForce "best-effort";
  12     # 0: high priority, 7: low priority
  13     IOSchedulingPriority = lib.mkForce 4;
  14     Nice = 0;
  15   };
  16
  17   systemd.services.nix-gc.serviceConfig = {
  18     CPUSchedulingPolicy = "batch";
  19     IOSchedulingClass = "best-effort";
  20     IOSchedulingPriority = 7;
  21     Nice = 5;
  22   };
  23
  24   systemd.sleep.extraConfig = ''
  25     AllowSuspend=no
  26     AllowHibernation=no
  27   '';
  28 }