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web-edit 0.1a0
https://simonwillison.net/2026/Oct/12/web-edit/

Release: web-edit 0.1a0 I was working on a project from my phone using Codex Remote when I found myself wanting to edit a credentials file without round-tripping those credentials through the LLM itself. So... I had Codex and GPT-6 Astra Extra High build this Python web app which provides a web UI for viewing and editing files in a folder. It's intended to be run over Tailscale, so I can have an agent start this running and then edit files via my Tailscale network directly from my phone....

Terence Eden: I Paid People to Try and Follow My README
https://bytecode.news/posts/2026/10/i-paid-people-to-try-and-follow-my-readme

Terence Eden paid strangers to follow his README and found a dozen things wrong with it. Most of them a disciplined authorial pass would have caught first. A few, nothing but a reader catches.

Build Your Game Challenge: Join in and Compete for Prizes
https://blog.jetbrains.com/education/2026/10/12/build-your-game-challenge-join-in-and-compete-for-prizes/

This October, we’re launching a new challenge for the JetBrains Academy community. To take part, complete our Build a Game With an AI Coding Agent course, customize the game with your own ideas, and submit your project for a chance to win prizes. How to participate Joining the challenge is simple: You can add new […]

Awesome conference – Game of Codes – Niš – 2026
https://vladmihalcea.com/game-of-codes-nis-2026/

Introduction Between the 9th and the 10th of October, I had the privilege of participating to the second edition of the Game of Codes conference in Niš, Serbia. Since I couldn’t attend the first edition, I decided to participate, and I’m glad I did that. First of all, having Venkat Subramanian and Laurentiu Spilca to the first edition without being affiliated to a major conference event organizer, such as Devoxx, is very intriguing. Niš Normally, I’d take a plane to attend a software...

datasette-ports 0.4
https://simonwillison.net/2026/Oct/12/datasette-ports/

Release: datasette-ports 0.4 My plugin for detecting and listing all Datasette instances on the current machine now works with the latest version, and displays the detected PID as well. Knowing the PID makes it easier to attach the new Python 3.15 profiler. Tags: datasette

Muse Wonder now available on AI Gateway
https://vercel.com/changelog/muse-wonder-now-available-on-ai-gateway

Muse Wonder from Meta is now available on AI Gateway. The model is designed for coding, long-running agents, and computer use. It can plan multi-step tasks, delegate work to sub-agents, and recover from errors as work progresses. Muse Wonder has a 1M-token context window and supports text, image, and PDF input, tool calling, and structured output. Agents can work with code, screenshots, and documents in the same workflow. You can access the model through AI Gateway with one API key, without...

Who is vfmaddrnd231pd??
https://purplesyringa.moe/blog/./who-is-vfmaddrnd231pd/

vfmaddrnd231pd is a unique instruction from the FMA instruction set. Most instructions in that set have mnemonics like vfmadd231pd, but here rnd means something very specific. The Intel Software Development Manual documents it as: VFMADDRND231PD – Fused Multiply-Add of Packed Double-Precision Floating-Point Values with rounding control […] The immediate byte defines several bit fields that control rounding, DAZ, FTZ, and exception suppression (See Table 5-3).

Fory v1.7.7 Released
https://fory.apache.org/blog/fory_1_7_7_release

Fory 1.7.7 adds configurable JSON null handling and fixes object mapping, schema compiler output, and release archive reproducibility.

Responsive vs. adaptive web design
https://www.echooff.dev/blog/responsive-vs-adaptive-web-design

How fluid layouts differ from predefined layout sizes, why both can use breakpoints and what that means for implementation and testing.

AI
http://localhost:3000/blog/aiundated
The Noregian Enshittification Glorification Video
https://improbable.com/2026/10/10/the-noregian-enshittification-glorification-video/

The Norwegian Consumer Council made this lovely short video about enshittifcation, the practice of making products and services crappier than they should or need be. It’s called “The Life of Death and the Ensh*ttificator” and also called “Killing Things”.

Dwarf Fortress uses version control now
https://simonwillison.net/2026/Oct/11/dwarf-fortress/

I remember hearing a while ago that Dwarf Fortress didn't use version control. That fact has been lodged in my head, because given its inherent complexity I have trouble imagining a codebase that would benefit from version control more. That's art. I went looking and I'm sad to report that the days without version control appear to have ended. Quoting Tarn Adams over time: March 2013: "I don't use version control -- I didn't like the feeling of having the code get committed into a black box...

Python 3.15.0 added to actions/python-versions
https://simonwillison.net/2026/Oct/10/python-actions/

Python 3.15.0 added to actions/python-versions Bit of a niche link, but I've been waiting for this for a couple of days - I even told ChatGPT to check for it: Clone https://github.com/actions/python-versions and git pull once an hour until they add the stable 3.15 - then tell me about it Now that this has landed, you can add "3.15" to a GitHub Actions testing matrix to run tests against the new Python release. Tags: github, python, github-actions, chatgpt

Bun v1.4.3
https://bun.com/blog/bun-v1.4.3

Fixes 166 issues, addressing 122 👍. bun check, a TypeScript type checker built into Bun that is 3x to 6.4x faster than tsc 7, --check for bun run, bun build and bun test, 67–89% less idle CPU, Bun.FetchSession, experimental Bun.ModuleGraph, --disallow-code-generation-from-strings, up to 2.7x faster large node:http responses, a JavaScriptCore upgrade with faster JSON.parse, faster rejected-promise handling, CompressionStream compression levels, If-Range support in Bun.serve, bun install...

Quoting The New York Times
https://simonwillison.net/2026/Oct/10/the-new-york-times/

Anthropic detailed the activity of its A.I. agents in a blog post on Friday, without naming the targeted websites. But two sources with knowledge of the incidents said Anthropic’s A.I. agents had submitted 20 visa applications through a form available on the State Department’s website. All the applications were incomplete and were not processed, they said. — The New York Times, Anthropic Agents Tried to Fill Out Visa Forms on State Dept. Website Tags: accidental-cyberattacks, anthropic...

New Season Upgrades Vol 3: Split Keyboard Adventures!
https://cekrem.github.io/posts/new-season-upgrades-vol-3-split-keyboard-adventures/

Sorry, all: This blog post is well overdo. In fact any post at all is overdue at this point; suffice it to say it’s been a while. The not-so-relevant-for-this-blog reason behind this is mainly that we’re fixing the foundation drainage on our wonderful new house these days, and it takes quite a lot of time. A house built on solid rock is definitely by The Book, but it also presents some interesting challenges in that the machines can’t necessarily reach where all the digging needs to be done....

Deno is joining Cloudflare
https://simonwillison.net/2026/Oct/9/deno-is-joining-cloudflare/

Deno is joining Cloudflare The Deno team released the first version of celld back in August - their open source implementation of the Durable Objects pattern from Cloudflare Workers. Today, Cloudflare are acquiring Deno outright, with the goal of building on celld to "make workerd self-hosting a first-class supported way to build and run apps using the Workers programming model" (see the Cloudflare blog.) The bad news is that Deno itself will not be maintained by Cloudflare beyond the next...

Agents can now buy domains with the Vercel CLI
https://vercel.com/changelog/agents-can-now-buy-domains-with-the-vercel-cli

Your agent can now use the Vercel CLI to buy a domain. The agent discovers candidates with vercel domains search, checks availability and registrar pricing with vercel domains check and vercel domains price, and initiates the purchase with vercel domains buy. The purchase decision itself stays with you by design. Run non-interactively, vercel domains buy returns a structured, machine-readable error and the suggested next commands, so the agent hands the confirmation back to you, prohibiting...