Update Dockerfile

Dockerfile

@@ -1,19 +1,27 @@
-# Dockerfile
 FROM python:3.9-slim
 
-# Install system dependencies (FFmpeg + build tools)
+# 1. Install system dependencies + build essentials
 RUN apt-get update && apt-get install -y \
     ffmpeg \
     build-essential \
     python3-dev \
     && rm -rf /var/lib/apt/lists/*
 
+# 2. Install wheel package FIRST (critical)
+RUN pip install --upgrade pip wheel setuptools
+
 WORKDIR /app
 
-# Install Python packages (prefer wheels)
+# 3. Copy requirements and install with NO-BINARY flag
 COPY requirements.txt .
-RUN pip install --no-cache-dir --prefer-binary -r requirements.txt
+RUN pip install --no-cache-dir \
+    --only-binary=:all: \  # Force wheel-only installation
+    -r requirements.txt
 
+# 4. Copy application code
 COPY . .
 
+# 5. Set FFmpeg path (for moviepy)
+ENV FFMPEG_BINARY=/usr/bin/ffmpeg
+
 CMD ["python", "app.py"]