Switch to Docker SDK to fix build error due to missing libgl1-mesa-glx

Switch the Space to use the Docker SDK by adding a Dockerfile that installs required system packages (git, ffmpeg, libgl dependencies, etc.) and sets up Python and our app. This bypasses the default apt-get command which fails to install libgl1-mesa-glx on the Trixie base image. Added packages.txt with libgl1, libglx-mesa0 and libglib2.0-0 for completeness. Updated README.md's YAML front matter to set sdk: docker. These changes should resolve the build error and allow our app with JSON-based outlines to run.

Dockerfile

@@ -0,0 +1,21 @@
+FROM python:3.10-slim
+
+# Install system dependencies
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    git git-lfs ffmpeg libsm6 libxext6 cmake rsync libgl1 libglx-mesa0 libglib2.0-0 \
+    && rm -rf /var/lib/apt/lists/*
+
+# Set working directory
+WORKDIR /app
+
+# Copy project files
+COPY . /app
+
+# Install Python dependencies
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Expose port for Gradio (default 7860)
+EXPOSE 7860
+
+# Start the Gradio application
+CMD ["python", "app.py"]

README.md

@@ -2,8 +2,7 @@
 title: Course Creator
 emoji: 🚀
 license: mit
-sdk: gradio
-app_file: app.py
+sdk: docker
 pinned: false
 ---
 

packages.txt

@@ -0,0 +1,3 @@
+libgl1
+libglx-mesa0
+libglib2.0-0