diff --git a/index.html b/index.html
index 44d2a2a..fcbc59e 100644
--- a/index.html
+++ b/index.html
@@ -4,6 +4,15 @@
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title>Bitfielder</title>
+    <meta name="description" content="Bitfielder is a live bitfield shader editor for creating visual patterns using bitwise operations.">
+    <meta name="author" content="BuboBubo">
+    <meta name="keywords" content="shader, bitfield, visual, patterns, programming, interactive, editor">
+    <meta property="og:title" content="Bitfielder - Bitfield Shader App">
+    <meta property="og:description" content="Interactive bitfield shader editor for creating visual patterns using bitwise operations">
+    <meta property="og:type" content="website">
+    <meta name="twitter:card" content="summary">
+    <meta name="twitter:title" content="Bitfielder - Bitfield Shader App">
+    <meta name="twitter:description" content="Interactive bitfield shader editor for creating visual patterns using bitwise operations">
     <style>
         * {
             margin: 0;
@@ -420,12 +429,11 @@
             <button id="random-btn">Random</button>
             <button id="share-btn">Share</button>
             <button id="export-png-btn">Export PNG</button>
-            <button id="export-gif-btn">Export GIF</button>
         </div>
     </div>
     
     <div id="editor-panel">
-        <textarea id="editor" placeholder="Enter shader code... (x, y, t, i)" spellcheck="false">x^y</textarea>
+        <textarea id="editor" placeholder="Enter shader code... (x, y, t, i, mouseX, mouseY)" spellcheck="false">x^y</textarea>
     </div>
     
     <div id="shader-library-trigger"></div>
@@ -471,6 +479,7 @@
             <p><strong>x, y</strong> - Pixel coordinates</p>
             <p><strong>t</strong> - Time (enables animation)</p>
             <p><strong>i</strong> - Pixel index</p>
+            <p><strong>mouseX, mouseY</strong> - Mouse position (0.0 to 1.0)</p>
         </div>
         
         <div class="help-section">
@@ -492,7 +501,6 @@
         <div class="help-section">
             <h4>Export</h4>
             <p><strong>Export PNG</strong> - Save current frame as image</p>
-            <p><strong>Export GIF</strong> - Save 2-second animation (if animated)</p>
         </div>
     </div>
     
@@ -502,4 +510,4 @@
 
     <script type="module" src="/src/main.ts"></script>
 </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/package-lock.json b/package-lock.json
index f0b0558..e7702cf 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -7,9 +7,13 @@
     "": {
       "name": "bitfielder",
       "version": "1.0.0",
+      "license": "AGPL3",
       "devDependencies": {
         "typescript": "^5.0.0",
         "vite": "^4.0.0"
+      },
+      "engines": {
+        "node": ">=16.0.0"
       }
     },
     "node_modules/@esbuild/android-arm": {
diff --git a/package.json b/package.json
index d168666..c78e8fb 100644
--- a/package.json
+++ b/package.json
@@ -34,9 +34,6 @@
   "engines": {
     "node": ">=16.0.0"
   },
-  "dependencies": {
-    "gif.js": "^0.2.0"
-  },
   "devDependencies": {
     "typescript": "^5.0.0",
     "vite": "^4.0.0"
diff --git a/src/FakeShader.ts b/src/FakeShader.ts
index a6419f5..d01ff34 100644
--- a/src/FakeShader.ts
+++ b/src/FakeShader.ts
@@ -6,6 +6,8 @@ interface WorkerMessage {
     height?: number;
     time?: number;
     renderMode?: string;
+    mouseX?: number;
+    mouseY?: number;
 }
 
 interface WorkerResponse {
@@ -27,6 +29,8 @@ export class FakeShader {
     private isRendering: boolean = false;
     private pendingRenders: string[] = [];
     private renderMode: string = 'classic';
+    private mouseX: number = 0;
+    private mouseY: number = 0;
     
     // Frame rate limiting
     private targetFPS: number = 30;
@@ -114,7 +118,9 @@ export class FakeShader {
             width: this.canvas.width,
             height: this.canvas.height,
             time: currentTime,
-            renderMode: this.renderMode
+            renderMode: this.renderMode,
+            mouseX: this.mouseX,
+            mouseY: this.mouseY
         } as WorkerMessage);
     }
 
@@ -186,6 +192,11 @@ export class FakeShader {
         this.renderMode = mode;
     }
 
+    setMousePosition(x: number, y: number): void {
+        this.mouseX = x;
+        this.mouseY = y;
+    }
+
     destroy(): void {
         this.stopAnimation();
         this.worker.terminate();
diff --git a/src/ShaderWorker.ts b/src/ShaderWorker.ts
index 0bc34cd..9d027a0 100644
--- a/src/ShaderWorker.ts
+++ b/src/ShaderWorker.ts
@@ -7,6 +7,8 @@ interface WorkerMessage {
     height?: number;
     time?: number;
     renderMode?: string;
+    mouseX?: number;
+    mouseY?: number;
 }
 
 interface WorkerResponse {
@@ -34,7 +36,7 @@ class ShaderWorker {
                     this.compileShader(message.id, message.code!);
                     break;
                 case 'render':
-                    this.renderShader(message.id, message.width!, message.height!, message.time!, message.renderMode || 'classic');
+                    this.renderShader(message.id, message.width!, message.height!, message.time!, message.renderMode || 'classic', message.mouseX || 0, message.mouseY || 0);
                     break;
             }
         } catch (error) {
@@ -50,7 +52,7 @@ class ShaderWorker {
 
         try {
             const safeCode = this.sanitizeCode(code);
-            this.compiledFunction = new Function('x', 'y', 't', 'i', `
+            this.compiledFunction = new Function('x', 'y', 't', 'i', 'mouseX', 'mouseY', `
                 // Timeout protection
                 const startTime = performance.now();
                 let iterations = 0;
@@ -76,7 +78,7 @@ class ShaderWorker {
         }
     }
 
-    private renderShader(id: string, width: number, height: number, time: number, renderMode: string): void {
+    private renderShader(id: string, width: number, height: number, time: number, renderMode: string, mouseX: number, mouseY: number): void {
         if (!this.compiledFunction) {
             this.postError(id, 'No compiled shader');
             return;
@@ -109,7 +111,7 @@ class ShaderWorker {
                     const pixelIndex = y * width + x;
                     
                     try {
-                        const value = this.compiledFunction(x, y, time, pixelIndex);
+                        const value = this.compiledFunction(x, y, time, pixelIndex, mouseX, mouseY);
                         const safeValue = isFinite(value) ? value : 0;
                         const [r, g, b] = this.calculateColor(safeValue, renderMode);
                         
diff --git a/src/gif.d.ts b/src/gif.d.ts
deleted file mode 100644
index 60cec1d..0000000
--- a/src/gif.d.ts
+++ /dev/null
@@ -1,24 +0,0 @@
-declare module 'gif.js' {
-    interface GIFOptions {
-        workers?: number;
-        quality?: number;
-        width?: number;
-        height?: number;
-        transparent?: string;
-        background?: string;
-        dither?: boolean;
-        debug?: boolean;
-        repeat?: number;
-        workerScript?: string;
-    }
-
-    class GIF {
-        constructor(options?: GIFOptions);
-        addFrame(canvas: HTMLCanvasElement, options?: { delay?: number; copy?: boolean; }): void;
-        render(): void;
-        on(event: 'finished', callback: (blob: Blob) => void): void;
-        on(event: 'progress', callback: (progress: number) => void): void;
-    }
-
-    export default GIF;
-}
\ No newline at end of file
diff --git a/src/main.ts b/src/main.ts
index 58a2c1e..6679e50 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -8,6 +8,8 @@ class BitfielderApp {
     private isAnimating: boolean = false;
     private uiVisible: boolean = true;
     private performanceWarning: HTMLElement;
+    private mouseX: number = 0;
+    private mouseY: number = 0;
 
     constructor() {
         this.canvas = document.getElementById('canvas') as HTMLCanvasElement;
@@ -53,7 +55,6 @@ class BitfielderApp {
         const randomBtn = document.getElementById('random-btn')!;
         const shareBtn = document.getElementById('share-btn')!;
         const exportPngBtn = document.getElementById('export-png-btn')!;
-        const exportGifBtn = document.getElementById('export-gif-btn')!;
         const resolutionSelect = document.getElementById('resolution-select') as HTMLSelectElement;
         const fpsSelect = document.getElementById('fps-select') as HTMLSelectElement;
         const renderModeSelect = document.getElementById('render-mode-select') as HTMLSelectElement;
@@ -72,7 +73,6 @@ class BitfielderApp {
         randomBtn.addEventListener('click', () => this.generateRandom());
         shareBtn.addEventListener('click', () => this.shareURL());
         exportPngBtn.addEventListener('click', () => this.exportPNG());
-        exportGifBtn.addEventListener('click', () => this.exportGIF());
         resolutionSelect.addEventListener('change', () => this.updateResolution());
         fpsSelect.addEventListener('change', () => this.updateFPS());
         renderModeSelect.addEventListener('change', () => this.updateRenderMode());
@@ -138,6 +138,13 @@ class BitfielderApp {
                 this.showPerformanceWarning();
             }
         });
+        
+        // Mouse tracking
+        window.addEventListener('mousemove', (e) => {
+            this.mouseX = e.clientX / window.innerWidth;
+            this.mouseY = 1.0 - (e.clientY / window.innerHeight); // Invert Y to match shader coordinates
+            this.shader.setMousePosition(this.mouseX, this.mouseY);
+        });
     }
 
     private render(): void {
@@ -272,86 +279,7 @@ class BitfielderApp {
         link.click();
     }
 
-    private exportGIF(): void {
-        const hasAnimation = this.editor.value.includes('t');
-        if (!hasAnimation) {
-            // Static image - just export as PNG
-            this.exportPNG();
-            return;
-        }
-        
-        // For animated GIFs, we need to capture multiple frames
-        this.captureGIF();
-    }
 
-    private async captureGIF(): Promise<void> {
-        const hasAnimation = this.editor.value.includes('t');
-        if (!hasAnimation) {
-            this.exportPNG();
-            return;
-        }
-
-        // Show progress indicator
-        const exportBtn = document.getElementById('export-gif-btn')!;
-        const originalText = exportBtn.textContent;
-        exportBtn.textContent = 'Capturing...';
-        exportBtn.setAttribute('disabled', 'true');
-
-        try {
-            // Import GIF.js dynamically
-            const { default: GIF } = await import('gif.js');
-            
-            const gif = new GIF({
-                workers: 2,
-                quality: 10,
-                width: this.canvas.width,
-                height: this.canvas.height
-            });
-
-            const frameDuration = 1000 / 30; // 30 FPS
-            const totalFrames = 60; // 2 seconds at 30 FPS
-            const frameInterval = 1000 / 30;
-
-            // Capture frames
-            for (let frame = 0; frame < totalFrames; frame++) {
-                exportBtn.textContent = `Capturing ${frame + 1}/${totalFrames}`;
-                
-                // Wait for frame to render
-                await new Promise(resolve => setTimeout(resolve, frameInterval));
-                
-                // Create a copy of the canvas for this frame
-                const tempCanvas = document.createElement('canvas');
-                tempCanvas.width = this.canvas.width;
-                tempCanvas.height = this.canvas.height;
-                const tempCtx = tempCanvas.getContext('2d')!;
-                tempCtx.drawImage(this.canvas, 0, 0);
-                
-                gif.addFrame(tempCanvas, { delay: frameDuration });
-            }
-
-            exportBtn.textContent = 'Rendering GIF...';
-            
-            gif.on('finished', (blob: Blob) => {
-                const url = URL.createObjectURL(blob);
-                const link = document.createElement('a');
-                link.download = `bitfielder-${Date.now()}.gif`;
-                link.href = url;
-                link.click();
-                URL.revokeObjectURL(url);
-                
-                exportBtn.textContent = originalText;
-                exportBtn.removeAttribute('disabled');
-            });
-
-            gif.render();
-        } catch (error) {
-            console.error('GIF export failed:', error);
-            exportBtn.textContent = originalText;
-            exportBtn.removeAttribute('disabled');
-            // Fallback to PNG
-            this.exportPNG();
-        }
-    }
 
     private loadSettings(): void {
         const settings = Storage.getSettings();