Author | Lightnews

Janis Jansen 🌳

@janis.me

49 followers 220 following 240 posts

Putting things on websites you didn't know could be on websites. Like fluid simulations or CAD software. Also conversational AI agents at cognigy.ai. Currently working on surimi.dev (pre-alpha) 🔗 janis.me 🖥️ github.com/janis-me 📽️ youtube.com/@janis-me

Posts Media Videos Starter Packs

Pinned

Janis Jansen 🌳 @janis.me · 20d

The first version of the 🍣 surimi playground is live!

It runs the @rolldown.rs based compiler in a WebContainer, and updates the editor instantly!

Check it out! surimi.dev/playground
Compile times are bit slower than locally tho.

Also
- has type-hint support
- you can install new packages
- ...

3 1 2

Janis Jansen 🌳 @janis.me · 4h

Crazy how consistent that is! My three user apps could never.

Janis Jansen 🌳 @janis.me · 2d

And also
github.com/whatwg/html/...

Should we remove XSLT from the web platform? · Issue #11523 · whatwg/html

What is the issue with the HTML Standard? XSLT v1.0, which all browsers adhere to, was standardized in 1999. In the meantime, XSLT has evolved to v2.0 and v3.0, adding features, and growing apart f...

github.com

Janis Jansen 🌳 @janis.me · 2d

I didn't even know browsers support it at runtime?? Thought it needed to be processed beforehand.

For people like me who need to read up, here is a discussion on the deprecation in blink
groups.google.com/a/chromium.o...

Intent to Deprecate and Remove: Deprecate and remove XSLT

groups.google.com

Janis Jansen 🌳 @janis.me · 3d

"This is a classical issue when <some activity Claude absolutely has no clue about AT ALL"

Janis Jansen 🌳 @janis.me · 7d

Awesome, great to know!

The part I felt was "dirty" was me writing some regex which might or might not work. As soon as I write regexes, I feel like I shouldn't have. But providing paths like you mentioned feels better :)

Janis Jansen 🌳 @janis.me · 7d

Okay sorry for the spam, but I'm stupid. You can filter by regex.
`-regexp:/(src|node_modules|@vite)` kinda hides all these requests in a very dirty way.

1 1

Janis Jansen 🌳 @janis.me · 7d

(I tried to just set a custom response header like "Vite-hide-request", but they're not added to all responses)

Janis Jansen 🌳 @janis.me · 7d

Though I feel like that's something other people already have figured out? @jakearchibald.com maybe you know how to get rid of unwanted dev server requests in the network panel, for example requests for @vite.dev modules.

You can filter by domain and negate, but that would hide too many

Janis Jansen 🌳 @janis.me · 7d

In Firefox, if you could filter network requests based on path/file.. you could negate the filter and exclude all requests from the vite dev server.

I think that's something we need. Vite module requests always spam the network panel.

Janis Jansen 🌳 @janis.me · 8d

"... and that concludes our guide to using the ECMAScript language effectively.

Now, forget everything you just read and let's talk about nodejs."

Janis Jansen 🌳 @janis.me · 8d

I also hate that you can use either asterisks, dashes OR underscores to make horizontal lines.

We recently needed to adjust how we parse markdown because we had messages that were "censored" with asterisks, which were interpreted as lines.

Janis Jansen 🌳 @janis.me · 8d

It's like working with a technology for 10 years and then learning in random bluesky comments, that you always used a part of it fundamentally wrong without noticing.

The amount of specs, exceptions and precautions to ensure compatibility and graceful handling is just insane.

1 2

Janis Jansen 🌳 @janis.me · 8d

Wow. For some reason I never realized vitest used chai. Makes absolute sense, but I always assumed vitest built its own assertions with a chai-like API.

Anyways, great to hear about the improvements!

Janis Jansen 🌳 @janis.me · 11d

Hm yeah might be. I did struggle especially with audio as soon as I wanted something non-standard. Like low level audio device access for DAWs, or getting my shitty audio card to work. But it was fun in a weird way.

Janis Jansen 🌳 @janis.me · 11d

We're getting there! Was a very productive week.

Screenshot of a GitHub PR summary, showing:
162 Files changed, +11.691 additions, -2.682 deletions and 24 commits

Janis Jansen 🌳 @janis.me · 11d

I mean sure you can figure it out. And once it's set up fully, it's super awesome.

But I already don't want to deal with, idk, audio tool chains and graphics drivers etc. on mainstream Linux, let alone on nixOS.

2 16

Janis Jansen 🌳 @janis.me · 11d

Not gonna lie, I'm this 🤏 close to diving down the "Yggdrasil Linux" rabbit hole. But I will resist. Can recommend the Wikipedia entry and this post though.

archiveos.org/yggdrasil/

Yggdrasil

Web site: sunsite.unc.edu/Sep-29-1996/docs/distributions/yggdrasil/announcement (not active) Origin: USA Category: Desktop Desktop environment: GUI ? Architecture: x86 Based on: Independent Wikipedia…

archiveos.org

3 30

Janis Jansen 🌳 @janis.me · 11d

"What Linux distro are you using?"
"I'm rocking plug-and-play Linux"

2 1 45

Janis Jansen 🌳 @janis.me · 11d

It's simple for a developer with 15 years of Linux experience. Difficult for the remaining 8.1 billion.

2 52

Janis Jansen 🌳 @janis.me · 12d

Let an LLM write some code. Then write like 100 tests but still don't trust the code.

- coding in 2025

Janis Jansen 🌳 @janis.me · 12d

Wow. fully forgot I pre-ordered that. Congratulations to all of us then!

Janis Jansen 🌳 @janis.me · 13d

I think more people should

Janis Jansen 🌳 @janis.me · 14d

(that's excluding all media query level 5 ones btw, they're even more that I will hide behind a flag because of browser support)

Janis Jansen 🌳 @janis.me · 15d

Speaking of Vendor prefixes. These are the ones I found so far

Stopping with the "spam" now :) sorry

| `-webkit-${string}`
| `-moz-${string}`
| `-ms-${string}`
| `-o-${string}`
| `-khtml-${string}`
| `-apple-${string}`
| `-x-moz-${string}`;

Janis Jansen 🌳 @janis.me · 15d

I also got one for (I hope) every single pseudo class and pseudo element!

There are some edge-cases though. like `:matches()`. And it excludes vendor-prefixed ones. Couldn't be bothered.