As the year is about to close, it's about time to say good-bye to Twitter. I'm not deleting the account or old tweets, I'll still monitor for mentions and DMs, and if something has _only_ been posted to Twitter I may retweet here. But all announcements will go elsewhere.

RT @anishathalye: Missing Semester has grown past 100K subscribers on YouTube. Appreciate all the engagement and support!. We plan to teach….

RT @jamesacowling: How to be a Principal Engineer/Senior Principal Engineer/Senior Architect/fancy-sounding-title Engineer, a thread:. 1. Y….

As for where "elsewhere" is, they're all listed on and at the time of writing includes YouTube, Discord, LinkedIn, Bluesky, and Mastodon. See you all there!.

New year, new Q&A; 1/1 at 5:30pm UTC: Bring out your questions, however deep or superficial, and I'll do my best to answer 😅 Vote on questions and propose your own at starting now!. Stream will be at 🍿🙋.

Perhaps unsurprisingly, I have a bunch of Opinions™ on work-life balance and time management. Lately, I've been particularly bugged by the common belief that employer incentives don't align with employee well-being. So, I wrote a thing (with graphs!):

RT @smartereveryday: Hey it's me Destin, from Smarter Every Day. Now that it's time to elect America's next leader, I would like to share….

RT @euro_rust: 🎥 The first #eurorust24 video is here! Starting off strong with @jonhoo , the Principal Engineer at @HelsingAI , as he teach….

RT @euro_rust: 🎉 New and FREE at #eurorust24: Competitive Control Systems Hackathon by Helsing! Build a control system in Rust for a virtua….

Recording of today's stream where we decrusted the quickcheck property testing crate is now up!.

Time in your timezone:.

Short notice, but tomorrow @ 8am UTC ( I'll decrust the quickcheck crate! We will explore what property testing is, how quickcheck lets you do it, how to go "more advanced", and how it all works under the hood. Come join at 🦀.

Follow along or come up with your own solution first and then compare, whichever you prefer — you can access the challenge for free through or in free source form (without the nice infrastructure) at

The recording of the stream where we implemented a lexer and parser for the Lox language from Crafting Interpreters in Rust is now up, and I think it turned out really good! Clocked in at 8h, but it's split into chapters to not be so daunting to follow :).

The Crafting Interpreters book is I was particularly inspired to do a stream like this after reading matklad's excellent article on Pratt parsing:

Come join me live, or try it yourself and compare notes with the VOD after the fact! You can access the challenge over at or in free source form at

I've been looking to stream writing an interpreter for a while, and @codecraftersio have just released a challenge in beta following @munificentbob's Crafting Interpreters book! So, this Saturday @ 1pm UTC ( we'll give it a try 🧑‍💻.

I often hear claims that (peer) reviews as time-consuming to write and useless to read. Which makes me sad, because they can be invaluable to both the recipient and the org. if written well. So, I wrote a rant about how to write them better:.

Recording of today's open source maintenance catch-up is now up! We made a decent dent in the notifications (~60 or so), with some taking _way_ longer than others (WebDriver for Chrome for Windows, I'm looking at you). You can find it here:.

As with past ones, my hope is that showing the maintainer side of open-source gives a better sense of how open-source operates, what it's like to be on the receiving end of issues/PRs, and generally what maintainer work entails. And hopefully you also learn stuff along the way!.