Jonas Røssum
nimrossum.com
Jonas Røssum
@nimrossum.com
🚛 Maintaining Git Truck https://git.new/truck
📖 MSc. CS @ITU.dk
👨🏼‍💻 Coding since 2010 https://jonas.nimrossum.com/
Reposted by Jonas Røssum
React defined the Web. The AI SDK will define AI
October 13, 2025 at 9:41 PM
Reposted by Jonas Røssum
My latest coding adventure — attempting to write a grid-based fluid solver and simulate some simple smoke!

youtu.be/Q78wvrQ9xsU?...
Coding Adventure: Simulating Smoke
YouTube video by Sebastian Lague
youtu.be
October 12, 2025 at 6:34 AM
Reposted by Jonas Røssum
I've released my first Go application!

It's a (very basic) terminal video editor that uses ffmpeg and whisper to let you selectively choose which lines from a video you want to keep.

You can also preview each line with a pop-up video player!

It's called tsplice:
October 4, 2025 at 9:00 PM
Reposted by Jonas Røssum
This whole section really.
September 28, 2025 at 10:59 PM
Reposted by Jonas Røssum
🛠️ New Article: The Basics of Anchor Positioning

I wrote an article covering some basics of CSS anchor positioning. Really excited to share this one! 🤩

🔗 ishadeed.com/article/anch...
August 28, 2025 at 7:41 AM
Reposted by Jonas Røssum
This is CSS performance problem I see all too often.

The React website has some jank due due to their use of transition.

Here is how to find what causes it and how and fix it
August 7, 2025 at 2:07 PM
Reposted by Jonas Røssum
Looks a little cleaner, lol
June 25, 2025 at 2:00 PM
Reposted by Jonas Røssum
Have you tried the integrated terminal suggestions feature in VS Code? It gives you lightning-fast completions, like dynamic branch suggestions or path navigation.

Available via the "terminal.integrated.suggest.enabled" setting (enabled by default in Insiders)
July 28, 2025 at 10:30 PM
Reposted by Jonas Røssum
Everyone: No, GitHub Desktop is better! No, VS Code!
Me: ...I just use `git add -p`.

Walks you through each change, hunk for hunk, and lets you accept with `y`. It’s like a mini code review before you commit.

Pair that with dandavison/delta, and you get syntax highlighting too 👀
July 18, 2025 at 12:00 PM
Reposted by Jonas Røssum
SVG filters provide a basic lighting system you can sync with a little JavaScript and use in your web apps 💡

... not as powerful as MacOS implementation but pretty cool
July 8, 2025 at 8:46 PM
Reposted by Jonas Røssum
Så var der endelig noget der skulle fixes :) Det er længe siden der har været noget sidst.
Sønnens gaming mus stoppede spontant med at virke. Helt død, mid-game, katastrofe! Noget må gøres! En repair-tråd fx 🧵
1/14
July 5, 2025 at 9:35 AM
Reposted by Jonas Røssum
✨Blog: Type-Safe Persistence and Auto-Theming in Svelte 5✨

- new Persisted(key, value, ZodSchema, SerializeDeserialize)
- new Theme() - system mode to synchronize with OS
- Data corruption contingency with Zod

www.puruvj.dev/blog/svelte-...
Type-Safe Persistence and Auto-Theming in Svelte 5 | blog | puruvj.dev
Building bulletproof localStorage utilities with cross-tab sync, Zod validation, and automatic cleanup using Svelte 5 runes.
www.puruvj.dev
June 16, 2025 at 5:45 PM
Reposted by Jonas Røssum
Sonda v0.8 is here, and it's the biggest release to date.

It introduces a new UI that makes it easier to inspect and visualize large projects. It also displays more information about assets, inputs, external dependencies, and import relationships.

Demo and details below 👇
June 16, 2025 at 1:44 PM
Reposted by Jonas Røssum
We have an open position for a Senior Cinematic Lighting Artist on 007 First Light. Come join us! :)
ioi.dk/careers?pane...
IOI Careers
Welcome to IOI Careers. Explore open jobs, and dive into our five unique studios across Copenhagen, Malmö, Barcelona, Istanbul, and Brighton.
ioi.dk
June 10, 2025 at 7:02 PM
Reposted by Jonas Røssum
Paper & Viz: Analysis of Denmark’s whole bicycle network
nerds.itu.dk/2025/05/20/p...
May 20, 2025 at 12:14 PM
Reposted by Jonas Røssum
Every country has its problems. Here in Denmark, we have too many cyclists causing congestion. Tackling this issue, we published in Interface our study on cohesive urban bicycle infrastructure design through optimal transport routing: https://royalsocietypublishing.org/doi/10.1098/rsif.2024.0532
February 7, 2025 at 8:53 AM
Reposted by Jonas Røssum
🌠 A long-requested CSS feature is the ability to transition height between a known value (`height: 20rem`) and a derived one (`height: auto`).

A new global CSS property makes this possible now. 😄

html {
interpolate-size: allow-keywords;
}

More info in thread 🧵
January 7, 2025 at 4:09 PM
Reposted by Jonas Røssum
It's that time of year again to brush up on your regular expressions.

Do you dare to discover the horrors that await in... The Typing of the RegEX

thetypingoftheregex.com
October 30, 2024 at 5:56 PM