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+# Multi-stage Dockerfile for Living Nexus - Optimized for Hugging Face Spaces
+# Stage 1: Build Environment
+FROM node:18-alpine AS builder
+
+# Set working directory
+WORKDIR /app
+
+# Install build dependencies
+RUN apk add --no-cache \
+    python3 \
+    make \
+    g++ \
+    git
+
+# Copy package files for dependency installation
+COPY package*.json ./
+COPY tsconfig*.json ./
+COPY vite.config.ts ./
+
+# Install dependencies with npm ci for faster, reliable builds
+RUN npm ci --only=production=false
+
+# Copy source code
+COPY src/ ./src/
+COPY public/ ./public/
+COPY index.html ./
+COPY *.md ./
+
+# Copy configuration files
+COPY config*.json ./
+COPY memory-bank/ ./memory-bank/
+
+# Build the application with optimizations
+ENV NODE_ENV=production
+RUN npm run build
+
+# Verify build output
+RUN ls -la dist/ && \
+    du -sh dist/* && \
+    echo "Build completed successfully"
+
+# Stage 2: Production Environment
+FROM nginx:alpine AS production
+
+# Install necessary packages for audio file handling and performance
+RUN apk add --no-cache \
+    gzip \
+    brotli
+
+# Copy custom nginx configuration
+COPY <<EOF /etc/nginx/nginx.conf
+user nginx;
+worker_processes auto;
+error_log /var/log/nginx/error.log warn;
+pid /var/run/nginx.pid;
+
+events {
+    worker_connections 1024;
+    use epoll;
+    multi_accept on;
+}
+
+http {
+    include /etc/nginx/mime.types;
+    default_type application/octet-stream;
+
+    # Logging
+    log_format main '\$remote_addr - \$remote_user [\$time_local] "\$request" '
+                    '\$status \$body_bytes_sent "\$http_referer" '
+                    '"\$http_user_agent" "\$http_x_forwarded_for"';
+    access_log /var/log/nginx/access.log main;
+
+    # Performance optimizations
+    sendfile on;
+    tcp_nopush on;
+    tcp_nodelay on;
+    keepalive_timeout 65;
+    types_hash_max_size 2048;
+    client_max_body_size 100M;
+
+    # Gzip compression
+    gzip on;
+    gzip_vary on;
+    gzip_min_length 1024;
+    gzip_proxied any;
+    gzip_comp_level 6;
+    gzip_types
+        text/plain
+        text/css
+        text/xml
+        text/javascript
+        application/json
+        application/javascript
+        application/xml+rss
+        application/atom+xml
+        image/svg+xml
+        audio/mpeg
+        audio/wav;
+
+    # Security headers
+    add_header X-Frame-Options "SAMEORIGIN" always;
+    add_header X-Content-Type-Options "nosniff" always;
+    add_header X-XSS-Protection "1; mode=block" always;
+    add_header Referrer-Policy "no-referrer-when-downgrade" always;
+    add_header Content-Security-Policy "default-src 'self' http: https: data: blob: 'unsafe-inline' 'unsafe-eval'" always;
+
+    server {
+        listen 7860;
+        listen [::]:7860;
+        server_name _;
+        root /usr/share/nginx/html;
+        index index.html;
+
+        # Efficient audio file serving
+        location ~* \.(mp3|wav|ogg|m4a|aac|flac)$ {
+            expires 1y;
+            add_header Cache-Control "public, immutable";
+            add_header Access-Control-Allow-Origin "*";
+            add_header Access-Control-Allow-Methods "GET, OPTIONS";
+            add_header Accept-Ranges bytes;
+            
+            # Enable range requests for audio streaming
+            location ~* \.mp3$ {
+                add_header Content-Type "audio/mpeg";
+            }
+            location ~* \.wav$ {
+                add_header Content-Type "audio/wav";
+            }
+            location ~* \.ogg$ {
+                add_header Content-Type "audio/ogg";
+            }
+        }
+
+        # Static assets caching
+        location ~* \.(js|css|png|jpg|jpeg|gif|ico|svg|woff|woff2|ttf|eot)$ {
+            expires 1y;
+            add_header Cache-Control "public, immutable";
+            access_log off;
+        }
+
+        # Handle client-side routing
+        location / {
+            try_files \$uri \$uri/ /index.html;
+            
+            # Security and performance headers for HTML
+            add_header X-Frame-Options "SAMEORIGIN";
+            add_header X-Content-Type-Options "nosniff";
+            add_header Cache-Control "no-cache, no-store, must-revalidate";
+        }
+
+        # Health check endpoint for Hugging Face Spaces
+        location /health {
+            access_log off;
+            return 200 "healthy\n";
+            add_header Content-Type text/plain;
+        }
+
+        # Optimized error pages
+        error_page 404 /index.html;
+        error_page 500 502 503 504 /index.html;
+    }
+}
+EOF
+
+# Copy built application from builder stage
+COPY --from=builder /app/dist /usr/share/nginx/html
+
+# Create directory for logs
+RUN mkdir -p /var/log/nginx && \
+    chown -R nginx:nginx /var/log/nginx && \
+    chown -R nginx:nginx /usr/share/nginx/html
+
+# Optimize audio files if they exist
+RUN find /usr/share/nginx/html -name "*.mp3" -exec sh -c 'echo "Audio file found: $1" && ls -lh "$1"' _ {} \;
+
+# Pre-compress static assets for better performance
+RUN find /usr/share/nginx/html -type f \( -name "*.html" -o -name "*.css" -o -name "*.js" -o -name "*.json" \) \
+    -exec gzip -k -9 {} \; && \
+    find /usr/share/nginx/html -type f \( -name "*.html" -o -name "*.css" -o -name "*.js" -o -name "*.json" \) \
+    -exec brotli -k -9 {} \;
+
+# Set proper permissions
+RUN chown -R nginx:nginx /usr/share/nginx/html && \
+    chmod -R 755 /usr/share/nginx/html
+
+# Expose port 7860 (Hugging Face Spaces default)
+EXPOSE 7860
+
+# Health check
+HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
+    CMD curl -f http://localhost:7860/health || exit 1
+
+# Start nginx
+CMD ["nginx", "-g", "daemon off;"]