iiinova — where your digital self keeps evolving

Nicolas Seriot @nst021.bsky.social · 30/09/2026

That's clearer with a diagram. Give this post a heart if you'd like more of "anatomy of a bug" soon!

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Nicolas Seriot @nst021.bsky.social · 29/09/2026

☠️ support.apple.com/en-us/149226

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Nicolas Seriot @nst021.bsky.social · 26/09/2026

New "anatomy of a bug" write-up: why CFXMLParser crashes on a 7-byte input? seriot.ch/security/cfx...

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Nicolas Seriot @nst021.bsky.social · 16/09/2026

New short write-up! For years, four Mach calls could reboot macOS and iOS devices because two lines in XNU were in the wrong order. seriot.ch/security/ipc...

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Nicolas Seriot @nst021.bsky.social · 26/08/2026

What if Jira, Unicode, basic text utilities or even a printer can compute far beyond their intended role? At hack_lu 2026, I'll present UNINTENDED COMPUTATIONS: from unexpected computers to a security methodology for finding hidden execution surfaces. 2026.hack.lu/agenda/

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Nicolas Seriot @nst021.bsky.social · 11/08/2026

QuickGPX: macOS QuickLook plugin for GPX files. seriot.ch/misc/quickgpx/

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Nicolas Seriot @nst021.bsky.social · 28/07/2026

Paged Out! #9 features two or my articles: 🧩 Computiles: 10 tiles, designed with my son Émilien, that enforce binary arithmetic through geometry. 💻 An Unexpected Computer: universal computation from echo, ed, test and exec. Free PDF: pagedout.institute @pagedout.bsky.social

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Nicolas Seriot @nst021.bsky.social · 23/07/2026

I built Cartopolis. Today's Switzerland rendered as 1999-style GIFs. seriot.ch/cartopolis/ No filters. Client-side rasterization from vector packs. Fully static architecture. seriot.ch/drawing/cart... Bake your own region using github.com/nst/Cartopolis @openstreetmap.bsky.social

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Eric M @ceciestmontweet.bsky.social · 21/07/2026

"Finis tes pesticides sinon la FNSEA sera très en colère !"

Un adulte montre de la main à l'enfant un plat qu'il refuse de manger.

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Nicolas Seriot @nst021.bsky.social · 08/07/2026

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/...

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Nicolas Seriot @nst021.bsky.social · 22/05/2026

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

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Nicolas Seriot @nst021.bsky.social · 01/04/2026

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.

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Nicolas Seriot @nst021.bsky.social · 24/03/2026

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.

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Nicolas Seriot @nst021.bsky.social · 19/02/2026

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. 🔊

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Nicolas Seriot @nst021.bsky.social · 16/12/2025

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

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Reposted by Nicolas Seriot

Stéphane Goetz @onigoetz.bsky.social · 13/12/2025

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...

medium.com

Supporting the transition to Self-Contained Systems using Architecture Fitness Functions at Scale

Hello, my name is Marc-Olivier Fleury, I am a Principal Software Engineer at Swissquote. My team helps our engineering teams build software…

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Reposted by Nicolas Seriot

Mambi @gambiconf.dev · 29/11/2025

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

youtube.com

GambiConf 2025

YouTube video by GambiConf

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Reposted by Nicolas Seriot

Mambi @gambiconf.dev · 29/11/2025

GAMBICONF 2025 ESTÁ EM PRODUÇÃO!!!

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Nicolas Seriot @nst021.bsky.social · 08/10/2025

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

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Nicolas Seriot @nst021.bsky.social · 06/10/2025

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

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Nicolas Seriot @nst021.bsky.social · 17/09/2025

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

triangle edge matching puzzle (software generated)

4x4 square edge matching puzzle, software generated

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Reposted by Nicolas Seriot

Eric M @ceciestmontweet.bsky.social · 09/09/2025

Lecornu démission !

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Reposted by Nicolas Seriot

Michael Tsai @mjtsai.bsky.social · 08/09/2025

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

mjtsai.com

Michael Tsai - Blog - Fake Mac Apps on GitHub

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Reposted by Nicolas Seriot

Anil Dash @anildash.com · 02/09/2025

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

Google AI search result for “was 2010 fifteen years ago?” returning: “No, 2010 was 14 years ago, not 15 years ago. The current year is 2025, and to find the number of years ago 2010 was, you subtract 2010 from 2025, which equals 14.
Current Year: 2025
Past Year: 2010
Years Ago: 2025 - 2010 = 14 years”

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Nicolas Seriot @nst021.bsky.social · 23/08/2025

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.

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Reposted by Nicolas Seriot

GrapheneOS @grapheneos.org · 20/08/2025

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.

play.google.com

Swissquote - Apps on Google Play

Trade, invest and bank! Your all-in-one banking solution for smarter finances.

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Nicolas Seriot @nst021.bsky.social · 16/08/2025

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!

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Nicolas Seriot @nst021.bsky.social · 05/08/2025

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

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Nicolas Seriot @nst021.bsky.social · 01/08/2025

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!

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Nicolas Seriot @nst021.bsky.social · 11/07/2025

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

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Nicolas Seriot @nst021.bsky.social · 07/07/2025

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'

gist.github.com

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Nicolas Seriot @nst021.bsky.social · 03/06/2025

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

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Reposted by Nicolas Seriot

Robert Stribley @stribs.bsky.social · 27/04/2025

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.

Alt-Txt: Two people stand before multi-color strips of paper with text on them that stretch down an entire wall and onto the floor. The title of the installation "I Agree" appear in all caps on the wall, too.

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Nicolas Seriot @nst021.bsky.social · 04/04/2025

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

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Nicolas Seriot @nst021.bsky.social · 24/03/2025

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

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Nicolas Seriot @nst021.bsky.social · 20/03/2025

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

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Nicolas Seriot @nst021.bsky.social · 17/03/2025

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

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Nicolas Seriot @nst021.bsky.social · 04/03/2025

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

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Nicolas Seriot @nst021.bsky.social · 21/02/2025

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

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Nicolas Seriot @nst021.bsky.social · 19/02/2025

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

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Nicolas Seriot @nst021.bsky.social · 19/01/2025

Blatant syntax error tolerated by Python 🐍 ☠️ 🤔

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Reposted by Nicolas Seriot

nolen @itseieio.bsky.social · 15/01/2025

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!

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Nicolas Seriot @nst021.bsky.social · 10/01/2025

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

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Nicolas Seriot @nst021.bsky.social · 05/01/2025

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

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Nicolas Seriot @nst021.bsky.social · 23/12/2024

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

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