Added udev Rules for FOSSASIA/led-name-badge-ls32, Added aarch64 Cross-Compilation Feature

systems/aarch64-linux/NoMra7/default.nix

@@ -0,0 +1,71 @@
+{ config, lib, pkgs, ... }:
+{
+  imports = [
+    #./mobile-nixos-branding.nix
+    #./plasma-mobile.nix
+  ];
+
+  # Users
+  users.users.kb = {
+    isNormalUser = true;
+    # Numeric pin makes it **possible** to input on the lockscreen.
+    password = "1234";  # INSECURE!!!
+    home = "/home/kb";
+    extraGroups = [
+      "dialout"
+      "feedbackd"
+      "networkmanager"
+      "video"
+      "wheel"
+    ];
+  };
+  users.users.root.password  = "nixos";  # INSECURE!!!
+
+  # Automatically login as defaultUserName.
+  services.displayManager.autoLogin = {
+    user = "kb";
+  };
+
+  # Desktop
+  services.displayManager.autoLogin.enable = true;
+  services.displayManager.defaultSession = "plasma-mobile";
+  services.xserver = {
+    enable = true;
+    desktopManager.plasma5.mobile.enable = true;
+    displayManager.lightdm = {
+      enable = true;
+      # Workaround for autologin only working at first launch.
+      # A logout or session crashing will show the login screen otherwise.
+      extraSeatDefaults = ''
+        session-cleanup-script=${pkgs.procps}/bin/pkill -P1 -fx ${pkgs.lightdm}/sbin/lightdm
+      '';
+    };
+  };
+  services.libinput.enable = true;
+
+  # Audio
+  services.pipewire.enable = lib.mkDefault true;
+  services.pulseaudio.enable = lib.mkDefault false;
+
+
+  # Networking
+  networking.hostName = "Ohybke";
+  networking.networkmanager.enable = true;
+  networking.networkmanager.unmanaged = [ "rndis0" "usb0" ];
+  networking.wireless.enable = false;
+
+  # Bluetooth
+  hardware.bluetooth.enable = true;
+
+  # Mobile Configuration
+  mobile.boot.stage-1.networking.enable = lib.mkDefault true;
+  mobile.boot.stage-1.kernel.useStrictKernelConfig = lib.mkDefault true;
+  mobile.beautification = {
+    silentBoot = lib.mkDefault true;
+    splash = lib.mkDefault true;
+  };
+  powerManagement.enable = true;
+
+  # SSH Server
+  services.openssh.enable = true;
+}

systems/aarch64-linux/NoMra7/mobile-nixos-branding.nix

@@ -0,0 +1,78 @@
+#
+# This configuration serves to force Mobile NixOS branding in the
+# Plasma Mobile environment at first boot.
+#
+# This is **not** an example for end-user-centric configuration.
+#
+{ config, pkgs, ... }:
+
+let
+  # This script will run *only once*, even if changed.
+  # https://develop.kde.org/docs/plasma/scripting/#update-scripts
+  # This will not work through userSetupScript, it seems that plasma mobile on
+  # first initialization forcibly resets some of the configurations.
+  # Running last (ZZZ) ensures it can do whatever initialization it needs to do.
+  plamoInitialDefaults = pkgs.writeTextDir "share/plasma/shells/org.kde.plasma.phoneshell/contents/updates/ZZZ-Mobile-NixOS-initial-defaults.js" ''
+    var allDesktops = desktops();
+    for (i=0; i<allDesktops.length; i++) {
+      d = allDesktops[i];
+      d.wallpaperPlugin = "org.kde.image";
+      d.currentConfigGroup = Array("Wallpaper", "org.kde.image", "General");
+      d.writeConfig("Image", "file://${wallpaper}")
+    }
+  '';
+
+  # Those configs are found in the file named as `--file`, with
+  # `--group` being [like][these].
+  userSetupScript = pkgs.writeScript "userInitialConfiguration" ''
+    #!${pkgs.runtimeShell}
+    ${pkgs.libsForQt5.kconfig}/bin/kwriteconfig5 \
+      --file kscreenlockerrc \
+      --group Greeter \
+      --group Wallpaper \
+      --group org.kde.image \
+      --group General \
+      --key Image "file://${wallpaper}"
+  '';
+
+  # Why copy them all?
+  # Because otherwise the wallpaper picker will default to /nix/store as a path
+  # and this could get messy with the amazing amount of files there are in there.
+  # Why copy only pngs?
+  # Rendering of `svg` is hard! Not that it's costly in cpu time, but that the
+  # rendering might not be as expected depending on what renders it.
+  # The SVGs in that directory are used as an authoring format files, not files
+  # to be used as they are. They need to be pre-rendered.
+  wallpapers = pkgs.runCommand "wallpapers" {} ''
+    mkdir -p $out/
+    cp ${../../artwork/wallpapers}/*.png $out/
+  '';
+
+  wallpaper="${wallpapers}/mobile-nixos-19.09.png";
+
+  # Used to run an ugly activation script.
+  defaultUserName = "alice";
+in
+{
+  environment.systemPackages = [
+    plamoInitialDefaults
+  ];
+
+  # Force some initial configuration
+  system.activationScripts.userInitialConfiguration = let
+    homeDir = config.users.users.${defaultUserName}.home;
+  in ''
+    echo ":: Mobile NixOS initial configuration..."
+    if [ ! -e ${homeDir}/.config ]; then
+      echo "Assuming first boot!"
+      echo "Creating home dir"
+      mkdir -p ${homeDir}
+      chown ${defaultUserName} ${homeDir}
+      echo "Configuring things"
+      ${pkgs.sudo}/bin/sudo -u "${defaultUserName}" "${userSetupScript}"
+    else
+      echo "Assuming any other boring normal boot..."
+      echo "Doing nothing..."
+    fi
+  '';
+}

systems/aarch64-linux/NoMra7/plasma-mobile.nix

@@ -0,0 +1,37 @@
+#
+# Minimum config used to enable Plasma Mobile.
+#
+{ config, lib, pkgs, ... }:
+
+{
+  mobile.beautification = {
+    silentBoot = lib.mkDefault true;
+    splash = lib.mkDefault true;
+  };
+
+  services.xserver = {
+    enable = true;
+
+    desktopManager.plasma5.mobile.enable = true;
+
+    displayManager.lightdm = {
+      enable = true;
+      # Workaround for autologin only working at first launch.
+      # A logout or session crashing will show the login screen otherwise.
+      extraSeatDefaults = ''
+        session-cleanup-script=${pkgs.procps}/bin/pkill -P1 -fx ${pkgs.lightdm}/sbin/lightdm
+      '';
+    };
+
+  };
+
+  hardware.bluetooth.enable = true;
+  services.pipewire.enable = lib.mkDefault true;
+  services.pulseaudio.enable = lib.mkDefault false;
+  networking.networkmanager.enable = true;
+  networking.wireless.enable = false;
+  powerManagement.enable = true;
+  services.libinput.enable = true;
+  services.displayManager.defaultSession = "plasma-mobile";
+  services.displayManager.autoLogin.enable = true;
+}

systems/x86_64-linux/Ohybke/default.nix

@@ -82,6 +82,11 @@
     sudo.u2fAuth = true;
     swaylock.u2fAuth = true;
   };
+  services.udev.extraRules = ''
+    SUBSYSTEM=="usb",  ATTRS{idVendor}=="0416", ATTRS{idProduct}=="5020", MODE="0666"
+    # FIXME: the following line is not sufficient for pyhidapi.
+    KERNEL=="hidraw*", ATTRS{idVendor}=="0416", ATTRS{idProduct}=="5020", ATTRS{busnum}=="1", MODE="0666"
+  '';
 
   # Printing
   services.printing.enable = true;

systems/x86_64-linux/Ohybke/hardware.nix

@@ -18,6 +18,8 @@ in {
   boot.supportedFilesystems = [ "zfs" ];
   boot.zfs.forceImportRoot = false;
   networking.hostId = "60dbcc20";
+  boot.binfmt.emulatedSystems = [ "aarch64-linux" ];
+
 
   # Boot Process
   boot.loader.systemd-boot.enable = true;