nixos-config/hosts/double-rainbow.nix

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{
config,
lib,
pkgs,
modulesPath,
...
}:
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let
btrfs_options = [
"compress=zstd:3"
"noatime"
"x-systemd.device-timeout=0"
];
btrfs_ssd = [
"ssd"
"discard=async"
];
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in
{
imports = [ (modulesPath + "/installer/scan/not-detected.nix") ];
boot.initrd.availableKernelModules = [
"xhci_pci"
"ahci"
"nvme"
"usb_storage"
"usbhid"
"sd_mod"
];
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boot.initrd.kernelModules = [ "i915" ];
boot.kernelModules = [ "kvm-intel" ];
boot.extraModulePackages = [ ];
fileSystems."/" = {
device = "/dev/disk/by-uuid/a072a77b-ca29-47df-be65-6d310d067d78";
fsType = "btrfs";
options = [ "subvol=@" ] ++ btrfs_options ++ btrfs_ssd;
};
boot.initrd.luks.devices."luks-d6573cf8-25f0-4ffc-8046-ac3a4db1e964".device = "/dev/disk/by-uuid/d6573cf8-25f0-4ffc-8046-ac3a4db1e964";
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fileSystems."/boot" = {
device = "/dev/disk/by-uuid/97EB-7DB5";
fsType = "vfat";
};
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swapDevices = [ { device = "/swapfile"; } ];
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services.udev.extraRules = ''
# Force all disks to use mq-deadline scheduler
# For some reason "noop" is used by default which is kinda bad when io is saturated
ACTION=="add|change", KERNEL=="sd[a-z]*[0-9]*|mmcblk[0-9]*p[0-9]*|nvme[0-9]*n[0-9]*p[0-9]*", ATTR{../queue/scheduler}="mq-deadline"
'';
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# Enables DHCP on each ethernet and wireless interface. In case of scripted networking
# (the default) this is the recommended approach. When using systemd-networkd it's
# still possible to use this option, but it's recommended to use it in conjunction
# with explicit per-interface declarations with `networking.interfaces.<interface>.useDHCP`.
networking.useDHCP = lib.mkDefault true;
# networking.interfaces.enp2s0.useDHCP = lib.mkDefault true;
nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
powerManagement.cpuFreqGovernor = lib.mkDefault "ondemand";
hardware.cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
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networking.hostName = "double-rainbow"; # Define your hostname.
}