This is issue 012 of href.email, your dose of interesting links about tech, dev and design.

This week we're sharing a few of our favorite conference talks—the kind that you recommend any developer to watch at least once.

• We don't think Konstantin Kudryashov has ever given a below average talk. Min-maxing software costs is one of our favorite talks on software design. Yearning for more? Watch you might not need blank next.
• Before littering our HTML with utility drivel (we wouldn't want it to be any different), Adam Wathan had some good opinions on backend web development. In Cruddy by design he demonstrates how to distill our app into a set of CRUD actions.
• Ever wondered why window.setTimeout() is the browser's equivalent to WD-40? Jake Archibald's talk on the browser event loop explains setTimeout, requestAnimationFrame and more.
• Diving deeper into asynchronous JavaScript: Wes Bos has a 15 minute field guide on async + await.
• Just over a month ago John Drexler gave an excellent primer on product management at Laracon EU: Don't solve non problems.

• "The Open-Closed Principle states that software entities should be open for extension but closed for modification." A classic software architecture principle. Christian Ekrem guides us through building extensible components using the open-closed principle in React.
• Read a deep dive into some of our newer favorite CSS selector: :has and :not.
• Template literal types are one of TypeScript's most esoteric yet intriguing features. Axel Rauschmayer can teach you more about them than you'll ever need to know.
• Whether you're designing a business-critical form in your B2B app or writing a document to get align your team in the same direction: double check with the blur your eyes test.
• Andy Vandervell from PostHog shared some great non-obvious SEO advice for startups.