path: root/nixos/alpha/configuration.nix

{ config, pkgs, lib, ... }:

{
  imports = [ ];

  security = {
    rtkit.enable = true;
    doas.enable = true;
    doas.wheelNeedsPassword = false;
    sudo.wheelNeedsPassword = false;
  };

  boot.kernelPackages = config.boot.zfs.package.latestCompatibleLinuxPackages;
  boot.kernelParams = [
    "nohibernate"
    "nmi_watchdog=0"
    "systemd.watchdog_device=/dev/watchdog"
    "console=tty1"
  ];

  boot.initrd.supportedFilesystems = [ "zfs" ];
  boot.supportedFilesystems = [ "zfs" ];
  boot.zfs.enableUnstable = true;
  boot.zfs.forceImportRoot = false;
  boot.zfs.forceImportAll = false;
  boot.zfs.allowHibernation = true; # NOTE: disable if using swap on ZFS

  # GRUB bootloader
  boot.loader.efi.canTouchEfiVariables = true;
  boot.loader.grub = {
    enable = true;

    efiSupport = true;
    configurationLimit = 10;
    device = "nodev";
    useOSProber = true;
    copyKernels = true;
    extraEntries = ''
      # os-prober cannot detect QubesOS
      # We don't want to set any complex parameters here,
      # So load the qubes grub instead.
      menuentry "Qubes" {
        search --set=root --fs-uuid d34d5041-8c08-445b-8ff5-4057b4b302ea
        configfile ($root)/grub2/grub.cfg
      }

      menuentry "Reboot" {
        reboot
      }
      menuentry "Shutdown" {
        halt
      }
    '';
  };

  boot.initrd.postDeviceCommands = lib.mkAfter ''
    zfs rollback -r rpool/local/root@blank
  '';

  hardware.enableRedistributableFirmware = true;

  networking.hostName = "alpha";
  networking.hostId = "641a7b10";

  networking.networkmanager.enable = true;
  networking.useDHCP = false;
  networking.firewall.enable = true;

  i18n.defaultLocale = "en_US.UTF-8";

  console.keyMap = "us";
  console.colors = [
    "151515"
    "cf6a4c"
    "99ad6a"
    "dfa358"
    "8197bf"
    "b3a3ff"
    "8fbfdc"
    "cbc0ab"
    "333333"
    "d98870"
    "adbd88"
    "e5b579"
    "9aaccc"
    "c2b5ff"
    "a5cce3"
    "d5cdbc"
  ];

  time.timeZone = "Asia/Seoul";

  environment.systemPackages = with pkgs; [ gcc git gnumake solaar ];

  services.zfs.trim.enable = true;
  services.zfs.autoScrub.enable = true;
  services.zfs.autoScrub.pools = [ "rpool" ];

  # NOTE: `com.sun:auto-snapshot` property must be set to true on datasets you
  # wish to snapshot
  services.zfs.autoSnapshot.enable = true;
  services.zfs.autoSnapshot.flags = "-k -p --utc";

  services.openssh.enable = true;
  services.openssh.settings.PasswordAuthentication = false;
  services.openssh.hostKeys = [
    {
      path = "/persist/ssh/ssh_host_ed25519_key";
      type = "ed25519";
    }
    {
      path = "/persist/ssh/ssh_host_rsa_key";
      type = "rsa";
      bits = 4096;
    }
  ];

  sops.secrets.borg-alpha-rolling-pass = { };
  services.borgbackup.jobs.alpha-rolling = {
    paths = [
      "/persist"
      "/home"
    ];

    exclude = [
      # Rust build files
      "**/target"
    ];

    prune.keep = {
      within = "1d"; # Keep all archives from the last day
      daily = 7;
      weekly = 4;
      monthly = 3;
    };

    repo = "20963@hk-s020.rsync.net:rolling/alpha";
    encryption.mode = "repokey-blake2";
    encryption.passCommand = "cat ${config.sops.secrets.borg-alpha-rolling-pass.path}";

    environment.BORG_RSH = "ssh -i /persist/ssh/ssh_host_ed25519_key";
    # use borg 1.0+ on rsync.net
    environment.BORG_REMOTE_PATH = "/usr/local/bin/borg1/borg1";
    extraCreateArgs = "--verbose --stats --checkpoint-interval 600";
    compression = "auto,zstd";
    startAt = "*-*-* 03:00:00";
    persistentTimer = true;
    inhibitsSleep = true;
  };

  systemd.services."borgbackup-job-alpha-rolling" = {
    preStart = lib.mkBefore ''
      # Wait until internet is reachable after resuming
      until /run/wrappers/bin/ping rsync.net -c1 -q >/dev/null; do :; done
    '';
  };

  services.openssh.knownHosts."hk-s020.rsync.net".publicKey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAILcPl9x9JfRFwsn09NnDw/xBZbAN80ZQck+h6AqlVqPH";

  sound.enable = false;

  services.pipewire = {
    enable = true;

    alsa.enable = true;
    alsa.support32Bit = true;
    pulse.enable = true;
  };

  hardware.bluetooth.enable = true;
  hardware.logitech.wireless.enable = true;

  services.keyd-qol.enable = true;

  services.udev.extraRules = ''
    # Logitech receiver for superlight, causes premature wakeup from suspend
    ACTION=="add", SUBSYSTEM=="usb", DRIVERS=="usb", ATTRS{idVendor}=="046d", ATTRS{idProduct}=="c547", ATTR{power/wakeup}="disabled"
  '';

  services.printing.enable = true;
  services.printing.drivers = [ pkgs.gutenprint pkgs.samsung-unified-linux-driver pkgs.brgenml1lpr pkgs.brgenml1cupswrapper ];

  nixpkgs.config.allowUnfreePredicate = pkg: builtins.elem
    (lib.getName pkg) [
    "samsung-UnifiedLinuxDriver"
    "brgenml1lpr"
  ];

  services.pcscd.enable = true;

  programs.dconf.enable = true;
  services.gnome.gnome-keyring.enable = true;

  services.greetd = {
    enable = true;
    vt = 2;

    settings.default_session.command = "${pkgs.greetd.tuigreet}/bin/tuigreet -t -c sway";
  };

  services.journald.extraConfig = lib.mkForce "";

  systemd.extraConfig = "RebootWatchdogSec=5";

  fonts = {
    fontDir.enable = true;

    packages = with pkgs; [
      cozette
      dina-font
      envypn-font
      nanum
      sarasa-gothic
      siji
      jetbrains-mono
      tamzen
      twemoji-color-font
      emacs-all-the-icons-fonts
      (nerdfonts.override { fonts = [ "Iosevka" "JetBrainsMono" ]; })
    ];

    fontconfig = {
      enable = true;

      defaultFonts = {
        serif = [
          "Sarasa Gothic C"
          "Sarasa Gothic J"
          "Sarasa Gothic K"
        ];

        sansSerif = [
          "Sarasa Gothic C"
          "Sarasa Gothic J"
          "Sarasa Gothic K"
        ];

        monospace = [
          "Dina"
          "Terminus"
          "Iosevka Nerd Font"
          "JetBrainsMono Nerd Font"
        ];

        emoji = [
          "Siji"
          "Twitter Color Emoji"
        ];
      };
    };
  };

  programs = {
    sway.enable = true;
    sway.extraPackages = lib.mkForce [ ];

    zsh.enable = true;
    zsh.enableCompletion = false;
  };

  environment.sessionVariables = {
    WLR_NO_HARDWARE_CURSORS = "1"; # Prevent cursors disappearing on nouveau
  };

  hardware.opengl.enable = true;
  hardware.opengl.driSupport = true;
  hardware.opengl.driSupport32Bit = true;
  hardware.opengl.extraPackages = with pkgs; [ vaapiVdpau libvdpau-va-gl ];

  xdg.portal = {
    enable = true;
    extraPortals = with pkgs; [
      xdg-desktop-portal-gtk
      xdg-desktop-portal-wlr
    ];
  };

  sops.defaultSopsFile = ./secrets/secrets.yaml;
  sops.secrets.root-password.neededForUsers = true;
  sops.secrets.sefidel-password.neededForUsers = true;

  users.mutableUsers = false;

  fileSystems."/persist".neededForBoot = true;

  users.users = {
    root.passwordFile = config.sops.secrets.root-password.path;
    sefidel = {
      isNormalUser = true;
      shell = pkgs.zsh;
      passwordFile = config.sops.secrets.sefidel-password.path;

      extraGroups = [
        "wheel"
        "audio"
        "networkmanager"
      ];
    };
  };

  # This value determines the NixOS release with which your system is to be
  # compatible, in order to avoid breaking some software such as database
  # servers. You should change this only after NixOS release notes say you
  # should.
  system.stateVersion = "22.05"; # Did you read the comment?
}