switch to root to add permissions

Dockerfile

@@ -2,7 +2,7 @@ FROM node:slim
 
 RUN apt-get update && apt-get install -y python3 python3-pip python3-venv ffmpeg libsm6 libxext6 pkg-config libpixman-1-dev libcairo2-dev libpango1.0-dev libgif-dev
 
-RUN useradd -m -u 1000 user
+RUN useradd -m -u 1001 user
 USER user
 ENV HOME=/home/user \
     PATH=/home/user/.local/bin:$PATH
@@ -22,4 +22,11 @@ RUN yarn install && yarn build
 
 WORKDIR $HOME/app
 
+# need this because I cannot create user 1000 because it's
+# already taken by node, and user 1001 does not seem to have
+# permissions to write files
+USER root
+RUN chmod 777 $HOME/app
+USER user
+
 CMD ["/home/user/app/.venv/bin/python3", "main.py"]