Sebastian Korfmann
@skorfmann.com
Agentic Coding Trailblazer - Co-Organizing “Agentic Hamburg” https://agentic.hamburg/ - Building jot https://jot.skorfmann.com/jot/ Based in #hamburg - https://skorfmann.com
Launching Gespenst 👻 - A browser & headless terminal built on Ghostty's ghostty-vt WASM. Byte-oriented Web Streams API, WebGPU/WebGL2 rendering, and an xterm.js 6.0 compatibility package so you can try it without a rewrite. gespenst.dev
gespenst — Ghostty VT for the web
A high-performance TypeScript terminal with Ghostty VT and portable browser-only shells.
gespenst.dev
Is my Bluesky follow feed dying? Yes. isblueskydying.com/skorfmann.com So whom should I follow? Mostly agentic / ai topics or somehow local (Hamburg metropolitan area)
isblueskydying.com
So, anyone built an x like for you feed based on what they published? Would be curious how this works on Bluesky www.heise.de/en/news/X-ma...
X makes timeline algorithms open source – and promises transparency
There has been much speculation about how X decides which posts end up in the algorithmic timelines. Now you can check it yourself.
heise.de
2026. Ein Terminbuchungsportal erlaubt standardmäßig nur die großen Mailanbieter. Eigene Domain? Ticket aufmachen, warten, bis ein Techniker sie von Hand freischaltet. Kein MX-Check, kein Double-Opt-In. Menschliche Freigabe.
The new Sternbrücke is on the move: 108 m long, 4,500 tonnes, rolled through Altona to replace a bridge from 1926. There’s a livestream. #hamburg www.eisenbahnbruecken-ehm.de/sternbruecke...
this got so annoying that I'm back to codex for coding projects
So Anthropic keeps „relaunching“ Fable every week now, or what is this about?
Very happy to announce that @chatto.run, the amazing little team chat app you can self-host from your own infrastructure (and quite easily so), is now available & Open Source. ✨
Chatto is now Open Source!
The snappiest chat application you've ever used is now available for self-hosting.
hmans.dev
For testing out a few inference providers for #GLM5.2, I created a new #Pi extension for Euro provider #TensorX. They have a smol selection of models (tensorx.ai/models/), but what they serve, they serve *fast*. 200+ tps, constantly. Nice! github.com/czottmann/pi... #LLM
GitHub - czottmann/pi-tensorx: TensorX provider extension for pi coding agent. (TensorX is a European LLM router. I'm a customer.)
TensorX provider extension for pi coding agent. (TensorX is a European LLM router. I'm a customer.) - czottmann/pi-tensorx
github.com
Agentic Coding Meetup #6 - Tue 7 July, 18:00 @ XING Baumwall. Two talks + lightning demos (5 min) + people building with AI for real → luma.com/agentic-ymzl
Agentic Coding Meetup #6 · Luma
Agentic Coding Meetup #6 — hosted by XING at their new Baumwall office. Hamburg's meetup for people who build with AI, not just talk about it. Practitioners…
luma.com
Die WM läuft – aber wo? ⚽📺 Kleine Web-App für deutsche Fans: alle 104 Spiele in deutscher Zeit, TV-Sender pro Spiel (ARD/ZDF/MagentaTV) inkl. Mediathek-Deep-Links – plus Public-Viewing-Spots in 7 Städten. 👉 jot.skorfmann.com/wm2026/
WM26 · Spielplan & TV-Guide
Wer spielt heute, wo läuft's im TV (ARD, ZDF, MagentaTV) und wo ist Public Viewing? Alle 104 Spiele in deutscher Zeit.
jot.skorfmann.com
> Meet Fable 5, our newest model for complex, long-running work. Try anytime with /model. > Included in your plan limits until Jun 22, then switch to usage credits to continue. www.anthropic.com/claude/fable 👀
Claude Fable
Next generation of intelligence for the hardest knowledge work and coding problems.
anthropic.com
Using "dynamic workflows" in claude a bit too intense I guess > API Error: Server is temporarily limiting requests (not your usage limit) · Rate limited
Built a tiny browser engine for fun 🦀 → 🕸️ It parses, styles, lays out (taffy), scripts (QuickJS) and paints (tiny-skia) HTML/CSS/JS entirely inside WebAssembly. The browser never sees the markup - only pixels come back out. jot.skorfmann.com/prism-render...
Prism — a browser engine inside WebAssembly
An experimental, for-fun prototype: a from-scratch HTML/CSS/JS rendering engine in Rust + WASM (partial coverage, not yet open source), explained interactively — with live demos of the real renderer.
jot.skorfmann.com
A fun experiment I'm pursuing with Codex, building a simple browser rendering engine within a browser via Rust / WASM - Latest and most sophisticated take so far: play a video file with sound and do all the work in wasm. Codex runs for more than 16 hours already, and it's getting there
Dynamic Workflows in Claude Code to non coding problems are superb for fanning out 100s of subagents in minutes.
running codex in multiple subsequent "/goal" loops for the last 24 hours - so far no limit in sight
half a day of in depth code analysis from various angles of a handful of repositories via Claude Code using an API key is worth a Claude Max subscription 💸
In other news: wir sind jetzt dauercamper an der Lübecker Bucht 😅🏝️
Shipped a full music video end-to-end with AI: song from Suno, scenes from Seedance, lip-sync via another model, orchestrated from Claude Code. Wild what a bit of AI plumbing gets you these days. Heres the teaser
Google's Antigravity in search kind of blows my mind #googleio www.youtube.com/live/wYSncx9...
Google I/O '26 Keynote
YouTube video by Google
youtube.com
