Projects that go
way beyond the basics
Clone your own version of popular devtools, in any language you want to master.
Learn advanced language patterns, discover unique techniques, and master software design ideas that you can bring back to work.
The Redis challenge was extremely fun. I ended up having to read Redis protocol specification doc pretty carefully in its entirety! The result felt like lightly-guided independent study, if that makes sense. (Which, again, was lots of fun)
Scala Team at Stripe