feat(settings): add mouse sensitivity adjustment to settings page

README.md

@@ -44,11 +44,15 @@
 > **Warning**  
 > OpenNOW is under active development. Bugs and performance issues are expected while features are finalized.
 
+> **Trademark & Affiliation Notice**  
+> OpenNOW is an independent community project and is **not affiliated with, endorsed by, or sponsored by NVIDIA Corporation**.  
+> **NVIDIA** and **GeForce NOW** are trademarks of NVIDIA Corporation. You must use your own GeForce NOW account.
+
 ---
 
 ## What is OpenNOW?
 
-OpenNOW is a community-built desktop client for [NVIDIA GeForce NOW](https://www.nvidia.com/en-us/geforce-now/), built with Electron and TypeScript. It gives you a fully open-source, cross-platform alternative to the official app — with zero telemetry, full transparency, and features the official client doesn't have.
+OpenNOW is an independent, community-built desktop client for [NVIDIA GeForce NOW](https://www.nvidia.com/en-us/geforce-now/), built with Electron and TypeScript. It provides a fully open-source, cross-platform alternative to the official app with zero telemetry, full transparency, and power-user features.
 
 - 🔓 **Fully open source** — audit every line, fork it, improve it
 - 🚫 **No telemetry** — OpenNOW collects nothing
@@ -201,7 +205,7 @@ opennow-stable/src/
 ## FAQ
 
 **Is this the official GeForce NOW client?**
-No. OpenNOW is a community-built alternative. It uses the same NVIDIA streaming infrastructure but is not affiliated with or endorsed by NVIDIA.
+No. OpenNOW is an independent third-party client and is not affiliated with, endorsed by, or sponsored by NVIDIA. NVIDIA and GeForce NOW are trademarks of NVIDIA Corporation.
 
 **Was this project built in Rust before?**
 Yes. OpenNOW originally used Rust/Tauri but switched to Electron for better cross-platform compatibility and faster development.

opennow-stable/src/main/gfn/errorCodes.ts

@@ -1,11 +1,10 @@
 /**
- * GFN CloudMatch Error Codes
+ * CloudMatch error codes.
  *
- * Error code mappings extracted from the official GFN web client.
- * These provide user-friendly error messages for session failures.
+ * These mappings provide user-friendly messages for session failures.
  */
 
-/** GFN Session Error Codes from official client */
+/** Session error code constants. */
 export enum GfnErrorCode {
   // Success codes
   Success = 15859712,
@@ -296,7 +295,7 @@ export const ERROR_MESSAGES: Map<number, ErrorMessageEntry> = new Map([
     3237093656,
     {
       title: "Under Maintenance",
-      description: "GeForce NOW is currently under maintenance. Please try again later.",
+      description: "The service is currently under maintenance. Please try again later.",
     },
   ],
   [
@@ -394,14 +393,14 @@ export const ERROR_MESSAGES: Map<number, ErrorMessageEntry> = new Map([
     3237093684,
     {
       title: "Region Not Supported",
-      description: "GeForce NOW is not available in your region.",
+      description: "The service is not available in your region.",
     },
   ],
   [
     3237093685,
     {
       title: "Region Banned",
-      description: "GeForce NOW is not available in your region.",
+      description: "The service is not available in your region.",
     },
   ],
   [
@@ -534,7 +533,7 @@ export const ERROR_MESSAGES: Map<number, ErrorMessageEntry> = new Map([
     3237093722,
     {
       title: "Storage Error",
-      description: "GFN storage is not available.",
+      description: "Service storage is not available.",
     },
   ],
 
@@ -646,7 +645,7 @@ export interface SessionErrorInfo {
   unifiedErrorCode?: number;
   /** Session error code from session.errorCode */
   sessionErrorCode?: number;
-  /** Computed GFN error code */
+  /** Computed service error code */
   gfnErrorCode: number;
   /** User-friendly title */
   title: string;
@@ -679,7 +678,7 @@ export class SessionError extends Error {
   public readonly unifiedErrorCode?: number;
   /** Session error code from session.errorCode */
   public readonly sessionErrorCode?: number;
-  /** Computed GFN error code */
+  /** Computed service error code */
   public readonly gfnErrorCode: number;
   /** User-friendly title */
   public readonly title: string;
@@ -733,7 +732,7 @@ export class SessionError extends Error {
     const unifiedErrorCode = json.requestStatus?.unifiedErrorCode;
     const sessionErrorCode = json.session?.errorCode;
 
-    // Compute GFN error code using official client logic
+    // Compute normalized service error code
     const gfnErrorCode = SessionError.computeErrorCode(statusCode, unifiedErrorCode);
 
     // Get user-friendly message
@@ -756,7 +755,7 @@ export class SessionError extends Error {
   }
 
   /**
-   * Compute GFN error code from CloudMatch response (matching official client logic)
+   * Compute service error code from CloudMatch response
    */
   private static computeErrorCode(statusCode: number, unifiedErrorCode?: number): number {
     // Base error code

opennow-stable/src/renderer/src/App.tsx

@@ -692,6 +692,7 @@ export function App(): JSX.Element {
               audioElement: audioRef.current,
               microphoneMode: settings.microphoneMode,
               microphoneDeviceId: settings.microphoneDeviceId || undefined,
+              mouseSensitivity: settings.mouseSensitivity,
               onLog: (line: string) => console.log(`[WebRTC] ${line}`),
               onStats: (stats) => setDiagnostics(stats),
               onEscHoldProgress: (visible, progress) => {
@@ -760,6 +761,14 @@ export function App(): JSX.Element {
     if (settingsLoaded) {
       await window.openNow.setSetting(key, value);
     }
+    // If a running client exists, push certain settings live
+    if (key === "mouseSensitivity") {
+      try {
+        (clientRef.current as any)?.setMouseSensitivity?.(value as number);
+      } catch {
+        // ignore
+      }
+    }
   }, [settingsLoaded]);
 
   // Login handler

opennow-stable/src/renderer/src/components/SettingsPage.tsx

@@ -1416,6 +1416,36 @@ export function SettingsPage({ settings, regions, onSettingChange }: SettingsPag
                 Export Logs
               </button>
             </div>
+
+            {/* Mouse Sensitivity */}
+            <div className="settings-row">
+              <label className="settings-label">Mouse Sensitivity</label>
+              <div style={{ display: "flex", alignItems: "center", gap: "8px" }}>
+                <input
+                  type="range"
+                  className="settings-slider"
+                  min={0.1}
+                  max={4}
+                  step={0.01}
+                  value={settings.mouseSensitivity}
+                  onChange={(e) => handleChange("mouseSensitivity", parseFloat(e.target.value))}
+                />
+                <input
+                  type="number"
+                  className="settings-number-input"
+                  style={{ width: 80 }}
+                  min={0.1}
+                  max={4}
+                  step={0.01}
+                  value={Number(settings.mouseSensitivity.toFixed(2))}
+                  onChange={(e) => {
+                    const v = parseFloat(e.target.value || "0");
+                    if (Number.isFinite(v)) handleChange("mouseSensitivity", Math.max(0.1, Math.min(4, v)));
+                  }}
+                />
+                <span className="settings-subtle-hint">Multiplier applied to mouse movement (1.00 = default)</span>
+              </div>
+            </div>
           </div>
         </section>
       </div>

opennow-stable/src/renderer/src/gfn/webrtcClient.ts

@@ -183,6 +183,8 @@ interface ClientOptions {
   microphoneMode?: MicrophoneMode;
   /** Preferred microphone device ID */
   microphoneDeviceId?: string;
+  /** Mouse sensitivity multiplier (1.0 = default) */
+  mouseSensitivity?: number;
   onLog: (line: string) => void;
   onStats?: (stats: StreamDiagnostics) => void;
   onEscHoldProgress?: (visible: boolean, progress: number) => void;
@@ -503,6 +505,7 @@ export class GfnWebRtcClient {
   private mouseFlushLastTickMs = 0;
   private pendingMouseTimestampUs: bigint | null = null;
   private mouseDeltaFilter = new MouseDeltaFilter();
+  private mouseSensitivity = 1;
 
   private partialReliableThresholdMs = GfnWebRtcClient.DEFAULT_PARTIAL_RELIABLE_THRESHOLD_MS;
   private inputQueuePeakBufferedBytesWindow = 0;
@@ -557,6 +560,7 @@ export class GfnWebRtcClient {
     options.videoElement.srcObject = this.videoStream;
     options.audioElement.srcObject = this.audioStream;
     options.audioElement.muted = true;
+    this.mouseSensitivity = options.mouseSensitivity ?? 1;
 
     // Configure video element for lowest latency playback
     this.configureVideoElementForLowLatency(options.videoElement);
@@ -605,6 +609,13 @@ export class GfnWebRtcClient {
     this.log("Video element configured for low-latency playback");
   }
 
+  /** Update mouse sensitivity multiplier at runtime. */
+  public setMouseSensitivity(value: number): void {
+    const v = Number.isFinite(value) ? value : 1;
+    this.mouseSensitivity = Math.max(0.01, v);
+    this.log(`Mouse sensitivity set to ${this.mouseSensitivity}`);
+  }
+
   /**
    * Configure an RTCRtpReceiver for minimum jitter buffer delay.
    *
@@ -1840,8 +1851,9 @@ export class GfnWebRtcClient {
         return;
       }
 
-      this.pendingMouseDx += Math.round(this.mouseDeltaFilter.getX());
-      this.pendingMouseDy += Math.round(this.mouseDeltaFilter.getY());
+      // Apply user-configured mouse sensitivity multiplier before queuing
+      this.pendingMouseDx += Math.round(this.mouseDeltaFilter.getX() * this.mouseSensitivity);
+      this.pendingMouseDy += Math.round(this.mouseDeltaFilter.getY() * this.mouseSensitivity);
       this.pendingMouseTimestampUs = timestampUs(eventTimestampMs);
     };