Attempt to add lines that might be causing silent crash

Dockerfile

@@ -1,7 +1,9 @@
-# This image is cached on the Github Actions VM, so it drastically reduces build time
 FROM jekyll/minimal:latest
 USER root
 
+RUN apk --no-cache add build-base
+EXPOSE 4000/tcp
+
 COPY entrypoint.sh /entrypoint.sh
 
 ENTRYPOINT ["/entrypoint.sh"]