[Altair] Sets up xpadneo and bluetooth.

system/features/bluetooth.nix

@@ -0,0 +1,7 @@
+{ pkgs, ... }:
+{
+
+  environment.systemPackages = with pkgs; [
+    bluez
+  ];
+}

system/hosts/altair/configuration.nix

@@ -6,7 +6,6 @@
   pkgs,
   ...
 }:
-
 {
   networking.hostName = "altair"; # Define your hostname.
 

system/hosts/altair/default.nix

@@ -7,6 +7,7 @@
     ../../authorized-keys.nix
     ../../features/appimage.nix
     ../../features/audio.nix
+    ../../features/bluetooth.nix
     ../../features/gc.nix
     ../../features/gui.nix
     ../../features/container-dev.nix

system/hosts/altair/hardware-configuration.nix

@@ -32,6 +32,12 @@
     };
     kernelModules = [ "kvm-intel" ];
     extraModulePackages = [ ];
+
+    # disable_ertm is required for xpadneo to connect properly and establish a
+    # data connection.
+    extraModprobeConfig = ''
+      options bluetooth disable_ertm=1
+    '';
   };
 
   fileSystems = {
@@ -107,6 +113,13 @@
       # Enable the nvidia-settings menu?
       nvidiaSettings = true;
     };
+    xpadneo = {
+      enable = true;
+      settings = {
+        disable_mouse = 1;
+      };
+    };
+    bluetooth.enable = true;
   };
 
   # Add a udev rule to prevent the mouse from waking the system.  Note that it