Quizzes and games like Roblox are a good way to build your knowledge, whether you’re learning to code or becoming a K-pop expert.

ICYMI: Listen to our conversation with HashiCorp cofounder Mitchell Hashimoto, who recently returned to an IC role after serving as CEO and CTO.

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Today’s Lifeboat badge goes to user Roko C. Buljan for their answer to Pure CSS 3 image slider—without JavaScript or radio inputs.