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.

In January, @jonhoo, @jjgort, and I returned to @MIT_CSAIL to teach Missing Semester, a class on topics missing from most CS programs—tools and techniques that everyone should know, like Bash, Git, CI/CD, and AI tools. Today, we’re releasing the course for free online!

Should developers quit because of AI? 🤖 @VBragilevsky talked with @jonhoo about AI, programming, salaries, job market specifics, and of course, Rust 🦀 Watch the full interview for more insights 👉 jb.gg/JGrr25Xjb #AI #JetBrains #SoftwareEngineering #RustRover #RustLang #Programming

Missing Semester has grown past 100K subscribers on YouTube. Appreciate all the engagement and support! We plan to teach another iteration of the course in January 2026, revising the curriculum and covering new topics like AI IDEs and vibe coding.

How to be a Principal Engineer/Senior Principal Engineer/Senior Architect/fancy-sounding-title Engineer, a thread: 1. You're evaluated on how much more the company succeeds because you're there, not the lines of code you wrote. If you can unblock someone, do that. If you need to kill a two year project that's not going anywhere, do that. Do what is right, not what makes you look good.

New year, new Q&A; 1/1 at 5:30pm UTC: everytimezone.com/s/03a3a76f. Bring out your questions, however deep or superficial, and I'll do my best to answer 😅 Vote on questions and propose your own at wewerewondering.com/event/01… starting now! Stream will be at youtube.com/live/eMuGHXMjJTU 🍿🙋

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!): thesquareplanet.com/blog/abo…

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 something very interesting and important with you. I've been paying attention to this for a while, and I think if you look for it, you see it too. 🧵 1/n

🎥 The first #eurorust24 video is here! Starting off strong with @jonhoo , the Principal Engineer at @HelsingAI , as he teaches fundamental concepts of Rust that can be challenging for newcomers. It’s a masterclass in effective Rust education! Btw, Jon 🦀 is also the author of Rust for Rustaceans and the creator of the Crust of Rust YouTube series 📺 buff.ly/4f44nED Go and check out his other works! Watch Jon's video here ➡️ buff.ly/3NO9DAf #rustlang #techeducation #crustofrust

🎉 New and FREE at #eurorust24: Competitive Control Systems Hackathon by Helsing! Build a control system in Rust for a virtual quadcopter, compete live on a leaderboard, and test your creativity. Limited seats—grab yours now! Mentors: Dr. Robert Fink, @jonhoo , Cécile Allano , Omar Essaid 🔗 eurorust.eu/workshops/hackat… #rustlang

Recording of today's stream where we decrusted the quickcheck property testing crate is now up! youtu.be/64t-gPC33cc

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: thesquareplanet.com/blog/wri…