Suggestion for Trail: Rails performance

I think it would be cool to have a bunch of exercises about Rails performance tweaking, stuff like eager loading, caching, indexing etc.

Have you checked out this video https://thoughtbot.com/upcase/improving-rails-performance ? While it is not in “Trail” format, I found the discussions it opens quite interesting.

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Yes, I have :slight_smile: And the exercises could be formed around that content imo