added stuff

nyx/modules/options/device/capabilities.nix

@@ -0,0 +1,25 @@
+{lib, ...}: let
+  inherit (lib) mkOption types;
+in {
+  options.modules.device = {
+    # bluetooth is an insecure protocol if left unchedked, so while this defaults to true
+    # but the bluetooth.enable option does and should not.
+    hasBluetooth = mkOption {
+      type = types.bool;
+      default = true;
+      description = "Whether or not the system has bluetooth support";
+    };
+
+    hasSound = mkOption {
+      type = types.bool;
+      default = true;
+      description = "Whether the system has sound support (usually true except for servers)";
+    };
+
+    hasTPM = mkOption {
+      type = types.bool;
+      default = false;
+      description = "Whether the system has tpm support";
+    };
+  };
+}