Jon Gjengset (@jonhoo) 's Twitter Profile
Jon Gjengset

@jonhoo

Rust live-coder and OSS tinkerer who loves teaching. I try to keep a high SNR. Wrote Rust for Rustaceans. At @HelsingAI. Ex AWS. Co-founded @readysetio. he/him

ID: 25386045

linkhttps://jonhoo.eu calendar_today19-03-2009 21:12:36

6,6K Tweet

34,34K Followers

189 Following

Jon Gjengset (@jonhoo) 's Twitter Profile Photo

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: youtube.com/watch?v=_r8q0u…

Jon Gjengset (@jonhoo) 's Twitter Profile Photo

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/writing-a…

EuroRust (@euro_rust) 's Twitter Profile Photo

šŸŽ‰ 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, Jon Gjengset , CĆ©cile Allano ,

šŸŽ‰ 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, <a href="/jonhoo/">Jon Gjengset</a> , CƩcile Allano ,
EuroRust (@euro_rust) 's Twitter Profile Photo

šŸŽ„ The first #eurorust24 video is here! Starting off strong with Jon Gjengset , the Principal Engineer at Helsing , as he teaches fundamental concepts of Rust that can be challenging for newcomers. It’s a masterclass in effective Rust education! Btw, Jon šŸ¦€ is also the author of

Smarter Every Day (@smartereveryday) 's Twitter Profile Photo

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

Jon Gjengset (@jonhoo) 's Twitter Profile Photo

Perhaps unsurprisingly, I have a bunch of Opinionsā„¢ 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/about-40-…

Jon Gjengset (@jonhoo) 's Twitter Profile Photo

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 šŸ˜… Vote on questions and propose your own at wewerewondering.com/event/01JG4AMT… starting now! Stream will be at youtube.com/live/eMuGHXMjJ… šŸæšŸ™‹

James Cowling (@jamesacowling) 's Twitter Profile Photo

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

Anish Athalye (@anishathalye) 's Twitter Profile Photo

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.

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.