diff --git a/Dockerfile b/Dockerfile
index d61f4fb7..6fa9feb9 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -17,15 +17,16 @@ WORKDIR /app
 
 # Install Python dependencies first (cached layer). Hatch reads the custom build
 # hook from hatch_build.py even for this metadata-only install.
+ARG NANOBOT_EXTRAS=whatsapp
 COPY pyproject.toml README.md LICENSE THIRD_PARTY_NOTICES.md hatch_build.py ./
 RUN mkdir -p nanobot && touch nanobot/__init__.py && \
-    NANOBOT_SKIP_WEBUI_BUILD=1 uv pip install --system --no-cache ".[whatsapp]" && \
+    NANOBOT_SKIP_WEBUI_BUILD=1 uv pip install --system --no-cache ".[$NANOBOT_EXTRAS]" && \
     rm -rf nanobot
 
 # Copy the full source and install
 COPY nanobot/ nanobot/
 COPY --from=webui-builder /app/nanobot/web/dist/ nanobot/web/dist/
-RUN NANOBOT_SKIP_WEBUI_BUILD=1 uv pip install --system --no-cache ".[whatsapp]"
+RUN NANOBOT_SKIP_WEBUI_BUILD=1 uv pip install --system --no-cache ".[$NANOBOT_EXTRAS]"
 
 # Create non-root user and config directory
 RUN useradd -m -u 1000 -s /bin/bash nanobot && \