+RUN npm install
+
+# Add user so we don't need --no-sandbox.
+RUN groupadd -r pptruser && useradd -r -g pptruser -G audio,video pptruser \
+ && mkdir -p /home/pptruser/Downloads \
+ && chown -R pptruser:pptruser /home/pptruser \
+ && chown -R pptruser:pptruser /node_modules
+
+# Run everything after as non-privileged user.
+USER pptruser