Jon Gjengset (@jonhoo) / X

Jon Gjengset

6,588 posts

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

Oslo, Norway

Joined March 2009

Pinned
Jon Gjengset
@jonhoo
Dec 27, 2024
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.
Jon Gjengset
@jonhoo
Jun 1, 2021
Big announcement time 📢 For a while now, I've been working on a book that covers the next steps of @rustlang after "the book" — everything from API design to error handling to concurrency to async to FFI. And the early access was just released over at nostarch.com/rust-rustaceans! 🎉
nostarch.com
Rust for Rustaceans
Bridges the gap between beginners and professionals, enabling you to write apps, build libraries, and organize projects in Rust.
Jon Gjengset
@jonhoo
Sep 19, 2020
Big news time 📢 After I finish my thesis, I'll be joining Amazon AWS, specifically to drive adoption of Rust internally at Amazon! The role will include plenty of interaction with the Rust ecosystem and community, so if all goes to plan you'll only see more of me going forward!
Jon Gjengset
@jonhoo
Feb 3, 2020
In January, @anishathalye, @jjgort, and I ran a short class at @MIT_CSAIL on topics we think are missing in most CS programs — tools we use every day that everyone should know, like bash, git, vim, and tmux. And now the lecture notes and videos are online! missing.csail.mit.edu
00:00
Jon Gjengset
@jonhoo
Mar 27, 2021
Exciting news — I'm going to start doing Rust streams as part of my job at AWS! Nothing will change about the format or content, but it'll allow me to do more regular Crust of Rust and Unsafe Chronicles streams since I won't just do them on my spare time \o/
Jon Gjengset
@jonhoo
Nov 17, 2021
I... wrote a book. Like an actual, real, physical book. It's such a strange feeling finally holding it in my hands. I hope it teaches some people some things, and maybe even elicits some laughs along the way! ❤️
00:00
Jon Gjengset
@jonhoo
Mar 27, 2023
Amazon's (wild) new return-to-office policy is making it … more difficult to come to an agreement about me moving to Norway in June. Which means that come summer I may be looking for a Rust job in Europe! If you have an opportunity that may be relevant (🧵), reach out!
Jon Gjengset
@jonhoo
Aug 5, 2022
My book is on the swag table at @rustconf! Still so weird to see it out in the wild 👀
Jon Gjengset
@jonhoo
Jun 3, 2022
Okay, learning time! Name a @rustlang type (can be generic), and I'll (try to) tell you something you didn't know about that type!
Jon Gjengset
@jonhoo
Sep 15, 2021
Rust for Rustaceans is off to the printer 😮🎉
Jon Gjengset
@jonhoo
May 18, 2022
This week I've used GCC 7 on a GCC 4 platform to build Python to build GCC 11 to build GCC 11 to build Clang 14 to build Clang 14 to build Rust's LLVM all so I could get rid of some paths that had snuck their way into librustc_driver's debug symbols. This is fine 🐕☕🏠🔥🔥🔥.
Jon Gjengset
@jonhoo
Oct 5, 2021
The full digital version of Rust for Rustaceans is now up on nostarch.com/rust-rustaceans! I don't have a final schedule for the print version yet, but you can at least start reading it in pixel form 🎉 I hope you end up finding it useful ❤️
nostarch.com
Rust for Rustaceans
Bridges the gap between beginners and professionals, enabling you to write apps, build libraries, and organize projects in Rust.
Jon Gjengset
@jonhoo
Oct 9, 2022
PSA: Before copy-pasting a GitHub source code link, especially one that links to a line or line range, hit `y` to make the URL include the current commit hash. That way the link will keep working even if the file is later changed or moved/deleted.
Jon Gjengset
@jonhoo
Nov 25, 2021
C programmers, are you okay?