Johannes Mutter

A section of the OpenAI Symphony readme that says “tell your coding agent to build symphony in a programming language of your choice” with a link to a detailed spec

We have reached a moment where instead of releasing software you simply release the detailed spec for software and tell people to prompt their agent to build it themselves

From the README of OpenAI’s new Symphony orchestrator: github.com/openai/symph...

This is our third time out with Local-First Conf!

In past years we've thoroughly explored some core topics like sync engines and CRDTs.

In 2026, we're broadening into areas like identity, e2ee, malleable software, and open-weight models.

Almost 3 years since editable.website won 2nd place at @sveltesociety.dev SvelteHack.

Since then, I’ve been busy turning this from a prototype into something solid.

A way to build CMS-free, in-place editable websites using only Svelte.

This is v2. 🥳

the dream?

Pirating in 2000: Photoshop keygen.exe
Pirating in 2026: “Claude Code, reverse-engineer this app.”

Also having them drink milk during takeoff / landing is recommend to help the baby with pressure change and prevent damage to the eardrum.

Make sure to reserve a seat with bassinet or get a JetKits Bedbox from Stokke if you anticipate many flights in the next ~8 years. Or Yoyo with car seat/ adapter. Though car seat is too uncomfortable for 3h+ flights. We also got special baby ear plugs to ease the pain with pressure during takeoff.

focusing on this visual "shape of text" also removes /some/ dependency on actual written language and its length, so you design more generically with semantic hierarchy (how big are things compared to other things) and can internationalize more easily

For posters, where the titles should fill the available space. Currently measuring the longest word and total length in JavaScript then setting font-size accordingly in CSS.

app.patch-work.co/posters

A social network of self owned websites. All the good things about social media. And none of the trash.

Open Social — overreacted The protocol is the API.

i wrote about atproto and why it matters

It’s easy, except for subgrid. But something that bothers me regularly:
Column or row gaps that don’t collapse when the remainder slots are empty.

Would you say Jazz is well-suited to modeling and operating on data with interconnected structures, such as graphs, where nodes can have multiple relationships and recursive operations (like depth-first search, or hierarchical updates) are necessary?

Thanks to the CSS working group native css masonry may come soon to all browsers. Currently TP Safari.

@jensimmons.bsky.social‬

Try out a simplified version of the Masonry Grid (Demo + Code):
svelte.dev/playground/1...

Masonry layout in pure CSS?
The trick is to use grid-auto-rows: 20px on the container, then set each card’s height using grid-row-end: span 𝒳. For 𝒳 we calculate how many ‘rows’ tall a card should be based on the column width and aspect ratio. With tan() we get a unitless value

Sneak preview of the booking system @johannesmutter.bsky.social
and I are working on:

- Book/cancel a slot with a single click
- Get billed the next day automatically
- Book for yourself, or on behalf of someone else

PS: Made with Svelte 5