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vizie's NixOS desktop: Hyprland, CachyOS kernel and gaming tweaks
| 1 | # Written by hand from the CachyOS install, in the shape nixos-generate-config |
| 2 | # produces. During the install, compare it with the output of |
| 3 | # nixos-generate-config --show-hardware-config --root /mnt |
| 4 | # and keep the generated one if they differ. |
| 5 | # |
| 6 | # Disk layout: the existing btrfs partition is kept. NixOS gets subvolumes of |
| 7 | # its own (@nixos for /, @nix for /nix, @nixos-log for /var/log) next to |
| 8 | # CachyOS's, and /home is CachyOS's @home, so your files stay where they are. |
| 9 | # See MIGRATION.md. |
| 10 | { |
| 11 | config, |
| 12 | lib, |
| 13 | modulesPath, |
| 14 | ... |
| 15 | }: |
| 16 | let |
| 17 | btrfs = "/dev/disk/by-uuid/6e57f546-3dd3-43f6-9d1b-1c57f3b489ad"; |
| 18 | subvol = name: [ |
| 19 | "subvol=" |
| 20 | "noatime" |
| 21 | "compress=zstd" |
| 22 | ]; |
| 23 | in |
| 24 | { |
| 25 | imports = [ (modulesPath + "/installer/scan/not-detected.nix") ]; |
| 26 | |
| 27 | boot.initrd.availableKernelModules = [ |
| 28 | "nvme" |
| 29 | "xhci_pci" |
| 30 | "ahci" |
| 31 | "usbhid" |
| 32 | "usb_storage" |
| 33 | "sd_mod" |
| 34 | ]; |
| 35 | boot.kernelModules = [ "kvm-amd" ]; |
| 36 | |
| 37 | fileSystems."/" = { |
| 38 | device = btrfs; |
| 39 | fsType = "btrfs"; |
| 40 | options = subvol "@nixos"; |
| 41 | }; |
| 42 | fileSystems."/nix" = { |
| 43 | device = btrfs; |
| 44 | fsType = "btrfs"; |
| 45 | options = subvol "@nix"; |
| 46 | }; |
| 47 | fileSystems."/var/log" = { |
| 48 | device = btrfs; |
| 49 | fsType = "btrfs"; |
| 50 | options = subvol "@nixos-log"; |
| 51 | neededForBoot = true; |
| 52 | }; |
| 53 | fileSystems."/home" = { |
| 54 | device = btrfs; |
| 55 | fsType = "btrfs"; |
| 56 | options = subvol "@home"; |
| 57 | }; |
| 58 | fileSystems."/boot" = { |
| 59 | device = "/dev/disk/by-uuid/DDCE-5209"; |
| 60 | fsType = "vfat"; |
| 61 | options = [ |
| 62 | "fmask=0077" |
| 63 | "dmask=0077" |
| 64 | ]; |
| 65 | }; |
| 66 | |
| 67 | # The second drive (sdb, ext4) was commented out in CachyOS's fstab too. |
| 68 | # fileSystems."/home/vizie/Games" = { |
| 69 | # device = "/dev/disk/by-uuid/deadbeef-b2a7-406c-9704-4d07e2f38996"; |
| 70 | # fsType = "ext4"; |
| 71 | # }; |
| 72 | |
| 73 | hardware.cpu.amd.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware; |
| 74 | nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux"; |
| 75 | } |