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tom larkworthy @larkworthy.bsky.social · 7d

Automatic scavenger hunt generator!

tom larkworthy @larkworthy.bsky.social · 7d

Oh this is amazing, I backed up all my original notebooks to Notebook 2.0 files. I can open them in the Desktop app or generate sites from them. Finally I have a canonical source file representation for them.
500+ notebooks! Years of work.
github.com/endpointserv...

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tom larkworthy @larkworthy.bsky.social · 7d

Oh dunno how I missed that. Runtime is very small! I added these to my notes

tom larkworthy @larkworthy.bsky.social · 8d

my notes on a browserfied bundle observablehq.com/@tomlarkwort...
including converting notebook 1.0 to notebook 2.0 *file* format

docs.claude.com/en/docs/buil...

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tom larkworthy @larkworthy.bsky.social · 9d

wow I spent a fuckton of time writing a compiler/decompiler for Observable 1.0 and now it is ISC licensed in Notebook Kit and it does Typescript and Notebook 2.0 syntax and everything! This is amazing.

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tom larkworthy @larkworthy.bsky.social · 21d

Playing around with bundling Notebook Kit in the browser (rather than a CLI). 0.6Mb bundle size which is not bad at all!
Might be a better path for dependancy free standalone notebooks
observablehq.com/notebook-kit...

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tom larkworthy @larkworthy.bsky.social · 24d

Use XML tags to structure your prompts - Claude Docs

docs.claude.com

tom larkworthy @larkworthy.bsky.social · 24d

never imagine XML coming back. What next? UML?

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tom larkworthy @larkworthy.bsky.social · 29d

Managed to sort-of-fold a Huffman tower. Origami with curved creases! Designed by famous Mathematician David Huffman, who also gave us Huffman codes for compression. Fun.

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tom larkworthy @larkworthy.bsky.social · Sep 10

Python + Javascript in a local unified notebook environment !

Mike Bostock @ocks.org · Sep 10

Observable Notebook Kit and Desktop 1.3.0 are out, featuring data loader cells. You can now (finally!!) write Python and Node.js in notebooks. 🐍 observablehq.com/notebook-kit...

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tom larkworthy @larkworthy.bsky.social · Sep 7

TIL `Generator.prototype.return()` allows you to terminate a generator from the outside, useful to stop an infinite generator hogging resources after you changed your mind about using it after starting it.

tom larkworthy @larkworthy.bsky.social · Sep 7

Slowly figuring out codemirror 6
observablehq.com/@tomlarkwort...
robocoop and I got auto-complete and syntax highlighting working!

Roboco-op 2.1: Notebook collaborator

tom larkworthy @larkworthy.bsky.social · Sep 7

RoboCoop now does web search when helping write observable notebooks observablehq.com/@tomlarkwort...
It can do more technical stuff now because it reads the docs

Usage Import cell `robocoop`:- place the cell in your notebook:- See @tomlarkworthy/robocoop-2-example for an example Introduction Roboco-op blends Observablehq.com's reactive notebooks with an open s...

Fast 1D Circular Barcode Matching

tom larkworthy @larkworthy.bsky.social · Aug 24

Been thinking about the problem of high speed optical localisation for decades now. Not solved it, but I think I have a fast algorithm. I learnt that the Möbius transform gives the deformation of a regular grid under perspective transform. Thats what I needed!
observablehq.com/@tomlarkwort...

with the Möbius transform The aim of this notebook is to prototype a way of quickly detecting the center and tilt of a circular barcode passing through a scan line. This will be a building block of a ...

Roboco-op 2.0: Notebook collaborator

tom larkworthy @larkworthy.bsky.social · Aug 17

Roboco-op 2.0 is out!
observablehq.com/@tomlarkwort...
Understands @observablehq.com notebook syntax 1.0, can output multiple cells, prompt has been optimized and bringing it into a notebook has been simplified to a single import. gpt-5 ready.

Usage Import cell `robocoop`:- place the cell in your notebook:- See @tomlarkworthy/robocoop-2-example for an example Introduction Roboco-op blends Observablehq.com's reactive notebooks with an open s...

tom larkworthy @larkworthy.bsky.social · Aug 13

The authors used DSPy in their implementation and state they will publish their optimizer for it but that code is not published yet and I can't wait! and it's not actually that complex to do manually. Core algorithm is like 30 LoC. It's all the instrumenting that eats time.

Reposted by tom larkworthy

Lakshya A Agrawal @lakshyaaagrawal.bsky.social · Aug 13

Very interesting application of GEPA to Observable Javascript, thanks a lot @larkworthy.bsky.social for the great blog!

observablehq.com/@tomlarkwort...

bsky.app/profile/lark...

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tom larkworthy @larkworthy.bsky.social · Aug 12

thanks @lakshyaaagrawal.bsky.social!

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tom larkworthy @larkworthy.bsky.social · Aug 12

from UC Berkeley, Stanford University, BespokeLabs.ai, Databricks, MIT
Its so fricken simple and yet so good!

tom larkworthy @larkworthy.bsky.social · Aug 12

I tried out GEPA prompt evolution with pretty impressive results! Its a surprisingly simple algorithm that autonomously improves a prompt on a set of examples. I don't like the human variability in prompt design and GEPA feels more like engineering.
observablehq.com/@tomlarkwort...

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tom larkworthy @larkworthy.bsky.social · Aug 12

I wonder if we will have another AI research induced come-to-to-jesus moment like the collective realization that mastery is non-verbal skill acquazition

tom larkworthy @larkworthy.bsky.social · Aug 7

lol the GPT-5 coding agent is making the demoers sweat