Upload batches of users onto firebase

Dockerfile

@@ -20,9 +20,15 @@ RUN apt update && apt install -y \
     texlive-xetex \
     pandoc \
     librsvg2-bin \
+    curl \
     && rm -rf /var/lib/apt/lists/*
 
 
+RUN curl -sL https://deb.nodesource.com/setup_20.x | bash - \
+    && apt-get install -y nodejs
+
+RUN npm install -g firebase-tools
+
 # Install production dependencies.
 RUN pip install --no-cache-dir -r requirements.txt