I've been wondering for a while if anything in Unicode could accidentally compute. I've just shown that @unicode.org UTS#35 transliteration rules are universal, computing Collatz with just 3 rewrite rules running on stock ICU, shipped with every major OS. seriot.ch/computation/...

@atlassian.bsky.social Jira is actually Turing-complete, after all. I've built the proof the folklore was missing. seriot.ch/computation/...

RFC Esolang is a new programming language, in which the specification document IS the source code. esolangs.org/wiki/RFCEsol... Requirement levels like MUST, SHOULD, and MAY act as control flow. Executing RFC 9379 outputs the powers of two. Pre-existing RFCs form the standard library.

I’ve updated ScreenTime: seriot.ch/screentime/ It’s a tiny macOS utility that creates a movie from automated screenshots. Let me know whether it works for you.

Paged Out! #8 is out! pagedout.institute @pagedout.bsky.social In "An AWKward Modem" (p. 28), I show how to write a tiny modem in 5 lines of AWK and shift it into the near-ultrasonic range. 🔊

Thank you for nominating my Print to Play article :) I also completely agree with you about the LNK talk at Black Alps.

My colleague Marc-Olivier Fleury wrote an article about how we are guiding the transition of Swissquote's software architecture to Self-Contained Systems using Fitness Functions at scale: medium.com/swissquote-e...

Acompanhe já a live, rolando palestra do @mauricioszabo.bsky.social agora e teremos ainda muito mais depois! www.youtube.com/watch?v=bO4B...

GAMBICONF 2025 ESTÁ EM PRODUÇÃO!!!

PostScript Brainfuck interpreter down from 6 lines to 5 :-) github.com/nst/bfps Did I mention how much I love PostScript?

Paged Out!, a free mag of one-page reads on programming and hacking, has just release its #7 issue. Learn how to install a Tic-Tac-Toe game on your printer by copy-pasting a few lines of PostScript from my “Print to Play” article (page 38). #hacking #printers #programming #postscript

I turned a dusty family puzzle into code. A 🧩 generator, solver and visualizer. Small, documented, and fun to hack. Give it a ⭐ github.com/nst/EdgeMatc... #Puzzles #Python #Algorithms

Lecornu démission !

Fake Mac Apps on GitHub: mjtsai.com/blog/2025/09... #mjtsaiblog

Good news about the cutting-edge AI tools from the $3-trillion-dollar company.

Curious about passkeys? I created a quick PoC with Claude seriot.ch/pk/pk.php Then I sniffed the network with Charles and documented the protocol informally seriot.ch/pk/202508_pa... I also identified a few security smells.

Swissquote has launched official support for GrapheneOS for their main app instead of it only being available for Yuh: play.google.com/store/apps/d... > What’s new > - We now officially support GrapheneOS! > - Bug fixes and minor improvements They're verifying GrapheneOS via hardware attestation.

Releasing a curated list of my finest mountain hikes and races, with GPX files available for each route. seriot.ch/mountains/to... More to come, feedbacks are welcome!

Convert several JPG files into one PDF file with magick *.jpg x.pdf I wish I had known that earlier! quickies.seriot.ch?id=631

Mon talk à @lu.voxxeddays.com sur la programmation en langage PostScript est disponible sur YouTube en français www.youtube.com/watch?v=2ree... Au menu: - histoire, principes et environnement - jeux sur imprimante et dans GhostScript - code golfing, sécurité Merci à @zepag.fr et toute l'équipe!

Can't wait to present in Brazil 🇧🇷 and meet crazy, like-minded artists, developers and hackers 😃

Apple Preview 11.0 (macOS 15.5) does crash while opening gist.github.com/nst/373748f2... as x.pdf (malformed ICC profile). [com.apple.Preview] CoreGraphics assert(cs != NULL) failed in img_pixels_for_destination: colorspace missing CoreGraphics/Images/CGSImage.c:4029: failed assertion `cs != NULL'

The fastest way to detect a vowel in a string austinhenley.com/blog/vowels....

Two weeks ago, I presented my talk about PostScript programming at #DevDaysEurope, Vilnius, Lithuania. Slides on seriot.ch/projects/pro...

Love this. In his “I Agree” installation Dima Yarovinsky-Yahel took the content from terms of service statements for companies like Facebook, Snapchat, Instagram, Tinder and printed them out on A4 paper with a standard font size for legal contracts to demonstrate the length of these agreements.

A simple PostScript and PDF polyglot file gist.github.com/nst/0decdc1c...

This PostScript program will display the time as a clock gist.github.com/nst/382caefb...

"Playing games on printers" fixme.ch/node/229 RDV le vendredi 11 avril à 19h au FIXME Hackerspace à Renens (Lausanne)

A rotating cube in PostScript. - Long version gist.github.com/nst/ee47099f... - 8 lines version gist.github.com/nst/6194c0d8... ✨

I shrank Takashi Hayakawa's tiny ray tracer by 33 bytes seriot.ch/projects/pos...

I've just created a neat PostScript mode for SubEthaEdit and opened a pull request on the main project github.com/nst/SubEthaE...

I've just implemented Tetris in PostScript github.com/nst/PSTris - 600 lines / 10 KB - 69 different PostScript operators, no libs - realtime input, direct drop, speed levels - 7-tetrimino random bags - Nintendo scoring and high score tracking Playable in GhostView

Blatant syntax error tolerated by Python 🐍 ☠️ 🤔

I couldn't find any good games for my password manager. So I made one. 1Crossword connects to your 1Password vault and generates a crossword entirely out of your passwords! The crosswords are fun, simple, and great for sharing on social media when you finish. Enjoy!

Had a long commute. Improved PSSokoban graphics. github.com/nst/PSSokoban/

Amstrad CPC color palette in PostScript gist.github.com/nst/68fb5028... www.cpcwiki.eu/index.php/CP... #SlowSunday

Current status: spotting typos in the "Apple LaserWriter Reference" (1988)

More weird and funny PostScript hacks at DevDays Europe 2025 🤓 www.youtube.com/watch?v=61tP...

I've just written a Sokoban implementation in PostScript 🤦‍♂️ github.com/nst/PSSokoban Someone please stop me ☠️

Animated PostScript ❤️ gist.github.com/nst/3c2d5b57...

PSChess can finally be played in GhostView github.com/nst/PSChess

Current status and first post on BlueSky: Recreating the Macintosh System 6 screensaver from my childhood (as far as I can recall) using 484 bytes Python gist.github.com/nst/3f987d23... Welcome!