Update Dockerfile

Dockerfile

@@ -1,21 +1,46 @@
-FROM python:3.10-slim
-
-WORKDIR /app
+FROM python:3.11-slim
 
 # Install system dependencies
-RUN apt-get update && apt-get install -y \
-    build-essential \
+RUN apt-get update && apt-get install -y --no-install-recommends \
+        gcc libc6-dev \
     && rm -rf /var/lib/apt/lists/*
 
-# Copy requirements and install
-COPY requirements.txt .
-RUN pip install --no-cache-dir -r requirements.txt
+WORKDIR /app
+
+# Install Python dependencies
+RUN pip install --no-cache-dir \
+        flask flask-cors Pillow litert-lm "huggingface_hub[cli]"
+
+# Create dummy Vulkan library to satisfy litert-lm on CPU
+RUN printf '%s\n' \
+    'void vkGetInstanceProcAddr(){}' \
+    'void vkCreateInstance(){}' \
+    'void vkDestroyInstance(){}' \
+    'void vkEnumeratePhysicalDevices(){}' \
+    'void vkGetDeviceProcAddr(){}' > /tmp/vk.c \
+    && gcc -shared -fPIC -o /app/libvulkan.so.1 /tmp/vk.c \
+    && rm /tmp/vk.c
+
+# Create model directory
+RUN mkdir -p /app/models/qwen
+
+# Download Qwen 3.5 2B LiteRT-LM (community conversion)
+RUN huggingface-cli download paulsp94/Qwen3.5-2B-LiteRT-LM model.litertlm \
+        --local-dir /app/models/qwen
+
+# Copy the server code
+COPY server.py .
+
+# Setup permissions for Hugging Face Spaces (requires user 1000)
+RUN useradd -m -u 1000 user && chown -R user:user /app
+USER user
 
-# Copy application
-COPY app.py .
+# Environment
+ENV PORT=7860 \
+    LD_LIBRARY_PATH=/app \
+    GEMMA_MODEL_PATH=/app/models/qwen/model.litertlm \
+    HF_HOME=/app/.cache/huggingface
 
-# Expose port (HF Spaces standard)
 EXPOSE 7860
 
-# Run the application
-CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]
+CMD ["python3", "server.py"]