{ config, lib, pkgs, modulesPath, nixos-hardware, ... }: { imports = [ (modulesPath + "/installer/scan/not-detected.nix") nixos-hardware.nixosModules.common-cpu-intel nixos-hardware.nixosModules.common-pc nixos-hardware.nixosModules.common-pc-laptop nixos-hardware.nixosModules.common-pc-laptop-acpi_call nixos-hardware.nixosModules.common-pc-ssd ]; boot.initrd.availableKernelModules = ["xhci_pci" "thunderbolt" "nvme" "usbhid" "sdhci_pci"]; boot.initrd.kernelModules = ["dm-snapshot"]; boot.kernelModules = ["kvm-intel"]; boot.extraModulePackages = []; # https://elis.nu/blog/2020/05/nixos-tmpfs-as-root/ fileSystems."/" = { device = "none"; fsType = "tmpfs"; options = ["defaults" "size=4G" "mode=755"]; # mode=755 so only root can write to those files }; fileSystems."/boot" = { device = "/dev/disk/by-label/BOOT"; fsType = "vfat"; }; fileSystems."/nix" = { device = "/dev/disk/by-label/nix"; neededForBoot = true; fsType = "ext4"; }; swapDevices = [ { device = "/nix/persist/swapfile"; size = 32 * 1024; # 32 GiB } ]; nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux"; powerManagement.cpuFreqGovernor = lib.mkDefault "performance"; }