Clean up compose

examples/fullstack/backend/Dockerfile

@@ -11,8 +11,8 @@ RUN npm ci
 FROM deps AS develop
 WORKDIR /app
 COPY dev-entrypoint.sh /entrypoint.sh
+COPY .env.example /app/.env
 RUN chmod +x /entrypoint.sh
-RUN cat /entrypoint.sh
 ENV NODE_ENV=development
 EXPOSE 3333
 ENTRYPOINT [ "/entrypoint.sh" ]