Best of 2020

The blog posts Hacker News loved most in 2020. 1,508 posts.

Software Engineering
271

Rust Starter Kit 2020

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279

Programming with Categories

In this course we explain how category theory—a branch of mathematics known for its ability to organize the key abstractions that structure much of the mathematical universe—has become useful for writing elegant and maintainable code. In particular, we'll use examples from the Haskell programming language to motivate…

297

The Octo-Bouncer

I started thinking about ball juggling machines in the year 2014. I wrote about my first few attempts at creating them in this blog post from the year 2017. In 2018 I wrote another post about my then newest build. We’re now in the year 2020. And finally, the quest to get a machine to … Continue reading The Octo-Bouncer