nixos-config/hosts/desktop/hardware-configuration.nix

#
# Hardware settings for Teclast F5 10" Laptop
# NixOS @ sda2
#
# flake.nix
#  └─ ./hosts
#      └─ ./laptop
#          └─ hardware-configuration.nix *
#
# Do not modify this file!  It was generated by ‘nixos-generate-config’
# and may be overwritten by future invocations.  Please make changes
# to /etc/nixos/configuration.nix instead.
{
  config,
  lib,
  pkgs,
  modulesPath,
  ...
}: {
  imports =
    [(modulesPath + "/installer/scan/not-detected.nix")]
    ++ [(import ../../modules/hardware/backup.nix)];

  boot.initrd.availableKernelModules = ["xhci_pci" "ahci" "nvme" "usb_storage" "usbhid" "sd_mod"];
  boot.initrd.kernelModules = ["vfio_pci" "vfio" "vfio_iommu_type1"];
  boot.kernelModules = ["kvm-amd" "nct6775"];
  boot.extraModulePackages = [];
  boot.tmp.useTmpfs = false;
  boot.tmp.cleanOnBoot = true;
  zramSwap.enable = true;

  services.btrfs.autoScrub = {
    enable = true;
    interval = "monthly";
    fileSystems = [
      "/"
    ];
  };

  services.btrbk = {
    extraPackages = [pkgs.lz4 pkgs.mbuffer];
    instances = {
      hf = {
        onCalendar = "hourly";
        settings = {
          incremental = "yes";
          snapshot_create = "ondemand";
          snapshot_dir = "@snapshots";
          timestamp_format = "long";

          snapshot_preserve = "2m 2w 5d 5h";
          snapshot_preserve_min = "latest";

          volume = {
            "/mnt/snapshots/root" = {
              snapshot_create = "always";
              subvolume = {
                "@home" = {};
              };
            };
          };
        };
      };
      bak = {
        onCalendar = "daily";
        settings = {
          stream_buffer = "256m";
          stream_compress = "lz4";
          incremental = "yes";
          snapshot_create = "no";
          snapshot_dir = "@snapshots";
          timestamp_format = "long";

          snapshot_preserve_min = "all";
          target_preserve_min = "no";
          target_preserve = "4w 3d";

          ssh_identity = "/etc/btrbk/ssh/id_ed25519_btrbk_nas";
          ssh_user = "btrbk";

          volume = {
            "/mnt/snapshots/root" = {
              subvolume = {
                "@home" = {};
              };
              target = "ssh://jupiter.home.opel-online.de:2220/mnt/snapshots/Mars/@snapshots/@hades";
            };
          };
        };
      };
    };
  };

  systemd.timers = {
    btrbk-bak = {
      after = ["network-online.target"];
      requires = ["network-online.target"];
    };
  };

  fileSystems."/" = {
    device = "/dev/disk/by-id/nvme-ADATA_SX8200PNP_2J3320119186-part2";
    fsType = "btrfs";
    options = ["compress=zstd,space_cache=v2,ssd,noatime,subvol=@,discard=async"];
  };

  fileSystems."/home" = {
    device = "/dev/disk/by-id/nvme-ADATA_SX8200PNP_2J3320119186-part2";
    fsType = "btrfs";
    options = ["compress=zstd,space_cache=v2,ssd,noatime,subvol=@home,discard=async"];
  };

  fileSystems."/srv" = {
    device = "/dev/disk/by-id/nvme-ADATA_SX8200PNP_2J3320119186-part2";
    fsType = "btrfs";
    options = ["compress=zstd,space_cache=v2,ssd,noatime,subvol=@srv,discard=async"];
  };

  fileSystems."/nix" = {
    device = "/dev/disk/by-id/nvme-ADATA_SX8200PNP_2J3320119186-part2";
    fsType = "btrfs";
    options = ["compress=zstd,space_cache=v2,ssd,noatime,subvol=@nix,discard=async"];
  };

  fileSystems."/swap" = {
    device = "/dev/disk/by-id/nvme-ADATA_SX8200PNP_2J3320119186-part2";
    fsType = "btrfs";
    options = ["compress=zstd,space_cache=v2,ssd,noatime,subvol=@swap,discard=async"];
  };

  fileSystems."/mnt/snapshots/root" = {
    device = "/dev/disk/by-id/nvme-ADATA_SX8200PNP_2J3320119186-part2";
    fsType = "btrfs";
    options = ["compress=zstd,space_cache=v2,ssd,noatime,subvolid=5,discard=async"];
  };

  fileSystems."/boot" = {
    device = "/dev/disk/by-id/nvme-ADATA_SX8200PNP_2J3320119186-part1";
    fsType = "vfat";
  };

  fileSystems."/mnt/Pluto" = {
    device = "jupiter:/Pluto";
    fsType = "nfs";
    options = ["noauto,users,x-systemd.automount,x-systemd.device-timeout=10,soft,timeo=14,x-systemd.idle-timeout=1min,sec=sys,exec,nfsvers=4.2"];
  };

  fileSystems."/mnt/Mars" = {
    device = "jupiter:/Mars";
    fsType = "nfs";
    options = ["noauto,users,x-systemd.automount,x-systemd.device-timeout=10,soft,timeo=14,x-systemd.idle-timeout=1min,sec=sys,exec,nfsvers=4.2"];
  };

  swapDevices = [{device = "/swap/swapfile";}];

  networking = {
    useDHCP = false; # Deprecated
    hostName = "hades";
    networkmanager = {
      enable = true;
    };
    firewall = {
      enable = true;
      allowedUDPPorts = [24727];
      allowedTCPPorts = [24727];
    };
  };

  #  systemd.network = {
  #      enable = true;
  #      networks = {
  #          "10-lan" = {
  #              matchConfig.Name = "eno1";
  #              ntp = [ "192.168.2.1" ];
  #              domains = [ "home.opel-online.de" ];
  #              networkConfig = {
  #                DHCP = "yes";
  #                IPv6AcceptRA = true;
  #              };
  #          };
  #      };
  #  };

  hardware.cpu.amd.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
  #powerManagement.powertop.enable = true;
  powerManagement = {
    scsiLinkPolicy = "med_power_with_dipm";
  };
}