nix-config/nixos/modules/desktop.nix

{ config, pkgs, ... }:

{
  # boot.binfmt.emulatedSystems = [ "aarch64-linux" "qemu-aarch64" ];

  networking = {
    networkmanager = {
      enable = true;
      wifi = { scanRandMacAddress = false; };
    };

    useDHCP = false;
    interfaces = { };

    firewall = {

      # 51820 is used by wireguard
      allowedUDPPorts = [ 51820 ];

      # 1714 - 1764 is used by kdeconnect
      allowedTCPPortRanges = [{
        from = 1714;
        to = 1764;
      }];
      allowedUDPPortRanges = [{
        from = 1714;
        to = 1764;
      }];

      # if packets are still dropped, they will show up in dmesg
      logReversePathDrops = true;
      # # wireguard trips rpfilter up
      # extraCommands = ''
      #   ip46tables -t raw -I nixos-fw-rpfilter -p udp -m udp --sport 51820 -j RETURN
      #   ip46tables -t raw -I nixos-fw-rpfilter -p udp -m udp --dport 51820 -j RETURN
      # '';
      # extraStopCommands = ''
      #   ip46tables -t raw -D nixos-fw-rpfilter -p udp -m udp --sport 51820 -j RETURN || true
      #   ip46tables -t raw -D nixos-fw-rpfilter -p udp -m udp --dport 51820 -j RETURN || true
      # '';
    };
  };

  # Configure network proxy if necessary
  # networking.proxy.default = "http://user:password@proxy:port/";
  # networking.proxy.noProxy = "127.0.0.1,localhost,internal.domain";

  services.dbus.enable = true;
  services.tor.enable = true;
  services.udev = { packages = [ pkgs.android-udev-rules ]; };
  services.avahi.enable = true;
  services.rpcbind.enable = true;
  services.nfs.server.enable = true;

  # Enable CUPS to print documents.
  # services.printing.enable = true;

  # Enable sound.
  # sound.enable = true;
  # hardware.pulseaudio.enable = true;
  security.rtkit.enable = true;
  services.pipewire = {
    enable = true;
    alsa = {
      enable = true;
      support32Bit = true;
    };
    pulse.enable = true;
    jack.enable = true;
  };

  security.pam.services = {
    swaylock.text = ''
      auth include login
    '';
    waylock.text = ''
      auth include system-auth
    '';
    login = {
      allowNullPassword = true;
      setEnvironment = true;
      setLoginUid = true;
      startSession = true;
      unixAuth = true;
      updateWtmp = true;

      # Unlock keyring on login.
      enableGnomeKeyring = true;
    };
    system-auth = {
      allowNullPassword = true;
      setEnvironment = true;
      setLoginUid = true;
      startSession = true;
      unixAuth = true;
      updateWtmp = true;

      # Unlock keyring on login.
      enableGnomeKeyring = true;
    };
  };

  security.polkit.enable = true;

  # List packages installed in system profile. To search, run:
  # $ nix search wget
  # environment.systemPackages = with pkgs; [
  #   vim # Do not forget to add an editor to edit configuration.nix! The Nano editor is also installed by default.
  #   wget
  #   firefox
  # ];
  environment.systemPackages = with pkgs; [ dmidecode flashrom mbuffer ];

  # Enable touchpad support (enabled default in most desktopManager).

  # Define a user account. Don't forget to set a password with ‘passwd’.
  users = {
    groups = { plugdev = { }; };
    users = {
      rilla = {
        shell = pkgs.zsh;
        extraGroups = [
          "wheel"
          "docker"
          "libvirtd"
          "dialout"
          "plugdev"
          "adbusers"
          "video"
          "vboxusers"
        ];
        subUidRanges = [{
          startUid = 100000;
          count = 65536;
        }];
        subGidRanges = [{
          startGid = 100000;
          count = 65536;
        }];
      };
    };
  };

  programs.mosh.enable = true;
  programs.zsh.enable = true;
  programs.slock.enable = true;

  programs.fuse.userAllowOther = true;
  programs.nix-ld.enable = true;

  services.pcscd.enable = true;

  virtualisation = {
    docker.enable = true;
    podman = {
      enable = true;
      defaultNetwork.settings.dns_enabled = true;
    };
    libvirtd = {
      enable = true;
      allowedBridges = [ "virbr0" "virbr1" "virbr2" ];
    };
    spiceUSBRedirection.enable = true;
    virtualbox.host.enable = true;
  };
  services.spice-vdagentd.enable = true;
  programs.dconf.enable = true;

  services.udev.extraRules = ''
    # UDEV rules for Teensy USB devices
    ATTRS{idVendor}=="16c0", ATTRS{idProduct}=="04[789B]?", ENV{ID_MM_DEVICE_IGNORE}="1"
    ATTRS{idVendor}=="16c0", ATTRS{idProduct}=="04[789A]?", ENV{MTP_NO_PROBE}="1"
    SUBSYSTEMS=="usb", ATTRS{idVendor}=="16c0", ATTRS{idProduct}=="04[789ABCD]?", MODE:="0666"
    KERNEL=="ttyACM*", ATTRS{idVendor}=="16c0", ATTRS{idProduct}=="04[789B]?", MODE:="0666"
    ACTION=="add", SUBSYSTEM=="usb", ATTRS{idVendor}=="0483", ATTRS{idProduct}=="df11", MODE="664", GROUP="plugdev"

    # acpi brightness rulres
    ACTION=="add", SUBSYSTEM=="backlight", KERNEL=="acpi_video0", GROUP="video", MODE="0664"
    RUN+="${pkgs.coreutils-full}/bin/chgrp video /sys/class/backlight/intel_backlight/brightness"
    RUN+="${pkgs.coreutils-full}/bin/chmod g+w /sys/class/backlight/intel_backlight/brightness"
  '';

  hardware.opengl.enable = true;
  hardware.bluetooth.enable = true;
  services.blueman.enable = true;

  environment.persistence = {

    "/mnt/persist" = {
      directories = [
        "/etc/NetworkManager/system-connections"
        "/etc/nixos"
        "/etc/wireguard"
        "/var/lib/bluetooth"
        "/var/lib/docker"
        "/var/lib/libvirt"
        "/var/lib/systemd/coredump"

        "/home/rilla/.Slic3r"
        "/home/rilla/.abook"
        "/home/rilla/.bitmonero"
        "/home/rilla/.config/Element"
        "/home/rilla/.config/Nextcloud"
        "/home/rilla/.config/Signal"
        "/home/rilla/.config/Slack"
        "/home/rilla/.config/SuperCollider"
        "/home/rilla/.config/VirtualBox"
        "/home/rilla/.config/ardour6"
        "/home/rilla/.config/chromium"
        "/home/rilla/.config/kdeconnect"
        "/home/rilla/.config/kicad"
        "/home/rilla/.config/nvim/plugin"
        "/home/rilla/.config/syncthing"
        "/home/rilla/.config/tea"
        "/home/rilla/.config/whatsapp-for-linux"
        "/home/rilla/.electrum"
        "/home/rilla/.gnupg"
        "/home/rilla/.hydrogen"
        "/home/rilla/.john"
        "/home/rilla/.kube"
        "/home/rilla/.librewolf"
        "/home/rilla/.local/share/Bisq"
        "/home/rilla/.local/share/Nextcloud"
        "/home/rilla/.local/share/Steam"
        "/home/rilla/.local/share/SuperCollider"
        "/home/rilla/.local/share/TelegramDesktop"
        "/home/rilla/.local/share/containers"
        "/home/rilla/.local/share/dino"
        "/home/rilla/.local/share/direnv"
        "/home/rilla/.local/share/gopass/stores"
        "/home/rilla/.local/share/keyrings"
        "/home/rilla/.local/share/mpd"
        "/home/rilla/.local/share/nvim"
        "/home/rilla/.local/share/tor-browser"
        "/home/rilla/.local/share/webkitgtk"
        "/home/rilla/.local/state/wireplumber"
        "/home/rilla/.local/state/zsh"
        "/home/rilla/.mozilla"
        "/home/rilla/.newsboat"
        "/home/rilla/.password-store"
        "/home/rilla/.platformio"
        "/home/rilla/.vagrant.d"
        "/home/rilla/.vdirsyncer"
        "/home/rilla/.virtualenvs"
        "/home/rilla/.wine"
        "/home/rilla/Nextcloud"
        "/home/rilla/VirtualBox VMs"
        "/home/rilla/configs"
        # "/home/rilla/.cache"

      ];
      files = [
        "/etc/machine-id"
        "/etc/ssh/ssh_host_ed25519_key"
        "/etc/ssh/ssh_host_ed25519_key.pub"
        "/etc/ssh/ssh_host_ed25519_key-cert.pub"
        "/etc/ssh/user_ca.pub"

        "/home/rilla/.lmmsrc.xml"
        "/home/rilla/.mailsynclastrun"
        "/home/rilla/.ssh/known_hosts"

      ];
    };
    "/mnt/data" = {
      directories = [
        "/etc/luks-keys"

        "/home/rilla/Audio"
        "/home/rilla/Calendars"
        "/home/rilla/Contacts"
        "/home/rilla/Documents"
        "/home/rilla/Downloads"
        "/home/rilla/Images"
        "/home/rilla/Maildir"
        "/home/rilla/Monero"
        "/home/rilla/code"
        "/home/rilla/misc"
        "/home/rilla/workspace"

      ];
      files = [
        "/etc/btrbk/id_ed25519"
        "/etc/btrbk/id_ed25519.pub"
        "/etc/btrbk/id_ed25519-cert.pub"
      ];
    };
    "/mnt/logs" = { directories = [ "/var/log" ]; };
    "/mnt/vfs_share" = { directories = [ "/home/rilla/vfs_share" ]; };
  };

  # Open ports in the firewall.
  # networking.firewall.allowedTCPPorts = [ ... ];
  #
  # networking.firewall.allowedUDPPorts = [ ... ];
  # Or disable the firewall altogether.
  # networking.firewall.enable = false;
}