No professional experience with shopware but version 6 is rewrite using sYmfonY 5. It's #1 e-commerce software in Germany.
2 upvotes·1.1K views
Profiling of slow requests. It helps to understand the bootstrapping and the whole requests cycle. Blackfire.io
1 upvote·2.9K views
Solid components backed by a great community and visionary company (sensio labs). Symfony
1 upvote·1.9K views