Update Dockerfile

Dockerfile

@@ -1,12 +1,12 @@
-# Update to v0.18.1 to get Python 3.10+
 FROM manimcommunity/manim:v0.18.1
 
 USER root
 
-# --- ADD THIS LINE ---
-# Explicitly install FFmpeg to ensure ffprobe is in the system's PATH
-#RUN apt-get update && apt-get install -y --no-install-recommends ffmpeg
-RUN apt-get update && apt-get install -y fonts-noto-color-emoji
+# Install required fonts (Roboto + emoji)
+RUN apt-get update && apt-get install -y \
+    fonts-roboto \
+    fonts-noto-color-emoji
+
 COPY requirements.txt .
 RUN pip install --upgrade pip
 RUN pip install --no-cache-dir -r requirements.txt
@@ -14,7 +14,7 @@ RUN pip install --no-cache-dir -r requirements.txt
 WORKDIR /app
 COPY . /app
 
-# Permission fix
+# Fix permissions
 RUN chown -R manimuser:manimuser /app
 
 USER manimuser