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@@ -7,19 +7,25 @@ WORKDIR /code
 # Set environment variable to prevent interactive prompts during package installation
 ENV DEBIAN_FRONTEND=noninteractive
 
-# Install system-level dependencies:
-# - git: for version control (good practice)
-# - ffmpeg: required by manim for video processing
-# - texlive-full: a full LaTeX distribution for rendering math text
-# - build-essential, pkg-config, libcairo2-dev: NEW - required to compile pycairo
-# This is the slowest step.
+# Install all potential system-level dependencies for a full Manim installation
+# This "kitchen sink" approach helps prevent future build errors.
 RUN apt-get update && apt-get install -y --no-install-recommends \
-    git \
-    ffmpeg \
-    texlive-full \
+    # --- Core Build Tools ---
     build-essential \
     pkg-config \
+    # --- Manim Dependencies ---
+    ffmpeg \
+    texlive-full \
     libcairo2-dev \
+    libpango1.0-dev \
+    # --- Extra Dependencies for Optional Features (e.g., manim-voiceover) ---
+    libgl1-mesa-glx \
+    libglib2.0-0 \
+    libsm6 \
+    libxext6 \
+    libxrender1 \
+    espeak \
+    sox \
     && apt-get clean \
     && rm -rf /var/lib/apt/lists/*