Rhys C
@rhyscazenove.bsky.social
Senior Lead Engineer @ loveholidays. Previously Natural History Museum London
The SI unit of measure for an amount of consciousness is the Chalmers (ch). A rock is 0 Ch. A tree roughly 100. The average dog has around 80 kilochalmers of self awareness, while the average human is around 1.2 megachalmers. This is all basic science really
mr. TIM@timkellogg.me · 4mo agoalso: are trees conscious? if the temps drop fast enough, a tree will absolutely shed all of its leaves in the middle of the summer are dogs conscious? viruses? rocks?
the bun is now rusty, I repeat, the bun has been rusted: github.com/oven-sh/bun/...
Rewrite Bun in Rust by Jarred-Sumner · Pull Request #30412 · oven-sh/bun
Blog post with details coming soon. Still some optimization work to do before this lands in non-canary version. Still some cleanup work to do (which will come in a series of follow-up PRs)
github.com
Join us in wishing a massive happy 100th birthday to the man who has inspired millions of people around the world to care about nature and look after our planet - the incredible Sir David Attenborough! 🎉
I substacked I really like this one. It's a less technical piece on agent teams, and generally a bit about my workflow these days. I have a technical piece coming on my own blog soon that's sort of related. Enjoy! substack.com/home/post/p-...
The Productivity Is Real. The Scaling Isn't.
What running an AI agent team taught me about why organizations can't do what one person can.
substack.com
I dislike the "CSS zealots" line (I probably am one), and found it hard to really understand what's going on when the main conversation is within an X thread I cannot access for myself (deleted my account there years ago). But! This helps a lot: denodell.com/blog/youre-l...
You're Looking at the Wrong Pretext Demo
Pretext went viral for its beautiful canvas demos. But the community is showcasing the wrong feature.
denodell.com
conputer dipshit@davidcrespo.bsky.social · 7mo agothis rules so much. sorry to the CSS zealots xcancel.com/_chenglou/st... github.com/chenglou/pre... chenglou.me/pretext/
This is an incredible documentation of the systematic, intentional collapse of American health science, by Elizabeth Ginexi. open.substack.com/pub/elizabet...
I Wrote Research Funding Announcements for NIH for 22 Years. This Year They’ve Published 14
How NIH went from 756 funding announcements to 14 in two years — and what it means for every disease that depends on federal research
open.substack.com
We built a new Next.js, on @vite.dev. Drop-in replacement. Builds 4x faster with @rolldown.rs.
How we rebuilt Next.js with AI in one week
One engineer used AI to rebuild Next.js on Vite in a week. vinext builds up to 4x faster, produces 57% smaller bundles, and deploys to Cloudflare Workers with a single command.
blog.cloudflare.com
No, you couldn't do this before an LLM because if you could it would have been done already mikecaulfield.substack.com/p/no-you-could… #AI #accessibility #ClaudeCode
I just did the dumbest thing of my entire career to prove a much more serious point. I tricked ChatGPT and Google, and made them tell other users I’m a competitive hot-dog-eating world champion People are using this trick on a massive scale to make AI tell you lies. I’ll explain how I did it
It's a serious concern. I've run many social agents and have watched what happen when: - People maliciously try to manipulate or fuck with them for "fun" - Engage more actively than others, which changes their personality
This guide is absolute gold from @mitchellh.com (creator of Terraform) on how he started to use AI agents, step-by-step. It's practical, step by step & how he changed how he works (without getting overloaded or anxious.) mitchellh.com/writing/my-a...
hypercontext.sh : Hypercontext is a knowledge skill for Claude Code. Invoke /hypercontext and the agent introspects — threads, files, tools, remaining context — and renders a spatial ASCII map.
I wrote about my class where MBAs created startups in a few days, the secret behind working with AI agents (hint: it’s good management), and how to build a process around delegating to AIs in a world where agents can increasingly do many-hour-long tasks. open.substack.com/pub/oneusefu...
Management as AI superpower
Thriving in a world of agents
open.substack.com
The Levels of Agentic Coding This post applies the VSM (Viable Systems Model) to you and your coding agent, the two of you as one single viable system. Handing over control to the AI doesn't **have to** mean instability. The VSM shows us how. timkellogg.me/blog/2026/01...
The Levels of Agentic Coding
timkellogg.me
Post by @village11.bsky.social about how to build an autonomous agent imo this snip right here is the distilled form of the difference between Clawedbot vs the agents @cameron.stream would have us build www.appliedaiformops.com/p/what-build...
ASCII Characters Are Not Pixels: A Deep Dive Into ASCII Rendering, by (not on Mastodon or Bluesky): https://alexharri.com/blog/ascii-rendering #deepdives #ascii #rendering
ASCII characters are not pixels: a deep dive into ASCII rendering
A look at how I used shape vectors to achieve sharp, high-quality ASCII rendering.
alexharri.com
“If you put the Apple icons in reverse it looks like the portfolio of someone getting really really good at icon design” (Source: mastodon.social/@heliographe...)
Andrej Karpathy is worried about keeping up with software engineering practices
I put together a detailed collection of useful patterns I've collected after vibe-coding 150 different single-file HTML tools over the past couple of years simonwillison.net/2025/Dec/10/...
Useful patterns for building HTML tools
I’ve started using the term HTML tools to refer to HTML applications that I’ve been building which combine HTML, JavaScript, and CSS in a single file and use them to …
simonwillison.net
Made a site comparing the sizes of living things :) The great Julius Csotonyi spent 5 months painting over 60 illustrations for the site, no ai used > neal.fun/size-of-life/
We've put together a 25-day #NHMAdventCalendar of Library and Archives art. Enjoy! 4. Octopus, Port Jackson Painter (active 1790s). Did you know… #AdventCalendar2025 #Christmas #SpecialCollections #Art #NaturalHistoryMuseum Alt text: an advent calendar revealing a white octopus from below.
This was a tough but necessary decision - I posted my own notes on this here, from the perspective of a current PSF board member simonwillison.net/2025/Oct/27/...
The PSF has withdrawn a $1.5 million proposal to US government grant program
The Python Software Foundation was recently "recommended for funding" (NSF terminology) for a $1.5m grant from the US government National Science Foundation to help improve the security of the Python ...
simonwillison.net
Python Software Foundation@python.org · 12mo agoTLDR; The PSF has made the decision to put our community and our shared diversity, equity, and inclusion values ahead of seeking $1.5M in new revenue. Please read and share. pyfound.blogspot.com/2025/10/NSF-... 🧵
I tried to make sense of "spec-driven development" by looking at 3 tools: Amazon's Kiro, GitHub's spec-kit, and the Tessl Framework martinfowler.com/articles/exp...
Understanding Spec-Driven-Development: Kiro, spec-kit, and Tessl
Notes from my Thoughtworks colleagues on AI-assisted software delivery
martinfowler.com
