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Louis Maddox

@permutans.bsky.social

100 followers 96 following 1.7K posts

Combinatorially curious https://spin.systems

spin.systems

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Louis Maddox @permutans.bsky.social · 3d

✍️ Wrote about keeping calm and shipping OSS and why arguing for a feature should feel more like giving a proof against the spec than trying to win a debate cog.spin.systems/keep-calm-an...

Keep Calm and Ship On 🚢

Your guide to being a model OSSizen

cog.spin.systems

Reposted by Louis Maddox

Simon Willison @simonwillison.net · 8h

My notes on Claude Code for web, Anthropic's new asynchronous coding agent - I had preview access over the weekend, it's effectively a sandboxed instance of "claude --dangerously-skip-permissions" running in Anthropic's container simonwillison.net/2025/Oct/20/...

Claude Code for web—a new asynchronous coding agent from Anthropic

Anthropic launched Claude Code for web this morning. It’s an asynchronous coding agent—their answer to OpenAI’s Codex Cloud and Google’s Jules, and has a very similar shape. I had preview …

simonwillison.net

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Louis Maddox @permutans.bsky.social · 4h

Someone dropped a vibe Clauded MegaSuperDuper 3000 type project tangentially (in a name dropping way) related to the server in question and it was crickets in the otherwise v enthusiastic chat

Louis Maddox @permutans.bsky.social · 5h

💭🎞️ Idea for an inline-snapshot extension that uses perceptual image hashing (maybe a 3rd party extension) github.com/15r10nk/inli...

Support for perceptual hash snapshots with archived output files · 15r10nk inline-snapshot · Discussion #311

I'm working with a program that generates images, and I'd like to verify outputs remain consistent by comparing perceptual hashes (fast, compact) while keeping the actual image files archived (some...

github.com

Louis Maddox @permutans.bsky.social · 6h

If you enjoy images and wish you could snapshot them in your Python tests as strings, check out `czkawka` freshly arrived on PyPI from the land of the Rustaceans 😁 github.com/lmmx/czkawka

Technically this is actually based on `image_hasher` crate functionality but I'm bundling it together in here 🤫

A demo of the perceptual image hash computed using the `image_hasher` crate in Rust, via the `czkawka` Python package’s `hash_image` function, wrapped to take a Python package.

As seen in the test suite for the page-dewarp package

Louis Maddox @permutans.bsky.social · 6h

Oh sweet 3.9 just hit EOL 🚮

Louis Maddox @permutans.bsky.social · 7h

"I'm caching my perceptual hashes" is just so fun to say

Louis Maddox @permutans.bsky.social · 7h

Discovered today: when your feature branch gets a new remote commit (e.g. by a CI fixer bot), and push fails with

! [rejected] the-branch -> the-branch (stale info)
error: failed to push some refs to github.com:your/repo.git

If you `git fetch` you can in fact `--force-with-lease` push & overwrite!

Louis Maddox @permutans.bsky.social · 8h

Spoken like a man who knows my pain

Louis Maddox @permutans.bsky.social · 8h

nice, bat is using minus for a built in pager github.com/AMythicDev/m...

GitHub - AMythicDev/minus: An asynchronous, runtime data feedable terminal paging library for Rust

An asynchronous, runtime data feedable terminal paging library for Rust - AMythicDev/minus

github.com

Louis Maddox @permutans.bsky.social · 10h

*Computes dir-wide thresholded image similarity*
[Realises I want to specify the paths]
*Computes pairwise thresholded image similarity*
[Realises I want to get a distance metric]
*Computes pairwise image dis-similarity metric*
[Realises I could store the hash instead of the Hamming distance vs. it]

Louis Maddox @permutans.bsky.social · 12h

Fun puzzle: building both regular (manylinux) + musl Python wheels, my CI started failing saying GLIBC is too old (on ubuntu-latest so not), correctly guessed Swatinem/rust-cache action was reusing incompatible build artifacts between the 2 wheel types, poisoning the cache [musllinux uses musl libc]

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Louis Maddox @permutans.bsky.social · 13h

Regrettably my brain refuses to learn how to type "czkawka" pypi.org/project/czka...

Python package page for czkawka on PyPI (czkawka is the Polish word for ‘hiccup’)

Louis Maddox @permutans.bsky.social · 13h

Damn is your name `Arc::new(AtomicBool::new(false))` because y—

Reposted by Louis Maddox

James Chalmers @jameschalmers.bsky.social · 19h

This remains the funniest way to hear about an internet outage, though.

Denise C.
@SpudBenBean
·
Follow
A woman who rang ABC Sydney radio said she found out about the Optus outage from her cat.

The cat has an automatic wi-fi feeder (connected to Optus) & when breakfast wasn't delivered at 6:10 am, the cat went to the bedroom to lodge a complaint with management.

45 2.3K 7.5K

Louis Maddox @permutans.bsky.social · 15h

...but not for long 🫡💫 github.com/lmmx/czkawka

GitHub - lmmx/czkawka: Python bindings for the Czkawka Rust library, a fast image similarity engine

Python bindings for the Czkawka Rust library, a fast image similarity engine - lmmx/czkawka

github.com

Louis Maddox @permutans.bsky.social · 16h

One Python wrapper for czkawka and it's… glorified subprocess script -__-

Louis Maddox @permutans.bsky.social · 17h

Just discovered (or maybe just needed to use) filters for htop with F4... really gotta revive my process tree inventorying prototype and #rewriteitinrust

Louis Maddox @permutans.bsky.social · 17h

Encountering nix for the first time... because I can't work out how else to send a SIGINT to a child process (not you unsafe libc)

Louis Maddox @permutans.bsky.social · 18h

I rate how you can just hide your own comments as resolved as if they're a review without actually using GitHub reviews

Louis Maddox @permutans.bsky.social · 18h

V funny to me that Spotify tried curated playlists and got backlash for appearance of pigeonholing artists by identity category (and was), but when SoundCloud does it it’s just the best RecSys you’ve ever heard

Louis Maddox @permutans.bsky.social · 19h

*Rabbit hole intensifies*

barrett ✨ @barretts.club · Aug 17

this made me look at `MaybeUninit` and I just learned some cool things:

1. holy fuck using a union w/ the unit type for that is kinda genius
2. wrapping `ManuallyDrop` makes so much sense (bc we don’t know if it’s initialized lol)

doc.rust-lang.org/src/core/mem...

Louis Maddox @permutans.bsky.social · 19h

Was reminded of a technique using signal-hook (which was recording Ctrl-C not ignoring it) github.com/ConSol-Lab/P...

Solved ze bug by preventing teardown killing the pager, using RAAI to ignore SIGINT while the pager is active, then restoring the handler after less exits github.com/sharkdp/bat/...

github.com

Louis Maddox @permutans.bsky.social · 1d

Saw everyone else releasing Python 3.14 packages and immediately felt left out then as if on cue someone sent a PR to a random PyO3 package of mine so I could join the club (⌒_⌒)

Louis Maddox @permutans.bsky.social · 1d

Terminal ownership signal handling process spawning Drop impl diagnosis issue free to a good home 🤝 github.com/sharkdp/bat/...

github.com

Louis Maddox @permutans.bsky.social · 1d

strace is a beautiful name for a fd