docker image builds and runs. Credential/error improvements

Dockerfile

@@ -32,17 +32,17 @@ ADD --chmod=755 https://github.com/yt-dlp/yt-dlp/releases/latest/download/yt-dlp
 
 # Create a new user, install dependencies, and set up sudoers file
 RUN apt update; \
-    apt install -y --no-install-recommends ffmpeg python3; \
+    apt install -y --no-install-recommends \
+        libicu-dev ca-certificates \
+        ffmpeg python3; \
     apt autoremove -y; \
     apt clean -y;
 
+RUN update-ca-certificates
+
 # Copy the built application and the entrypoint script from the build stage
 COPY --from=build /app ./
-COPY --chmod=755 docker-entrypoint.sh /usr/local/sbin/
-
-# Set environment variables
-ENV shard_id=0
-ENV total_shards=1
+COPY docker-entrypoint.sh /usr/local/sbin/
 
 # Define the data directory as a volume
 VOLUME [ "/app/data" ]