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Constantin Gonzalez (he/him)

@glez.de
90 followers 127 following 306 posts

🌐 constantin.glez.de Expert generalist, tech advisor, mentor, Munich, Germany. Worked at AWS, Oracle, and Sun linkedin.com/in/constantingonzalez/ | @glez@mastodon.social | Twitter: @zalez (inactive) Dad&husband | synth programmer | barefoot runner

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Constantin Gonzalez (he/him) @glez.de · 26/09/2026
Watched ”Backrooms“ yesterday. Great psycho horror movie. I read an explainer afterwards and that made it even better. Recommended! www.imdb.com/title/tt2665...
imdb.com
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Constantin Gonzalez (he/him) @glez.de · 24/09/2026
If you ever wondered where all this hate speech on the internet comes from, the answer is more simple, even innocent than you may think: youtu.be/zCvPPaIN5Ew The irony behind all of this just blew my mind.
youtu.be
How to rage bait Americans
YouTube video by Christophe
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Constantin Gonzalez (he/him) @glez.de · 22/09/2026
During our vacation, I tried to make AI hallucinate, feeding image generators pure noise. Turns out the smart ones refused turning my gibberish into brass numbers. Gemini told me it was a Unix timestamp. 🙄 Stable Diffusion happily dreamed away. Blog post + repo: constantin.glez.de/posts/2026-0...
Two AI-generated images top/bottom. Top: a brass plate on a dark, weathered wooden door, engraved with the number 763530653. Bottom: a calm mountain lake at dawn with a wooden jetty and a red canoe moored beside it, snowy peaks and pine forests on the far shore, and no numbers anywhere. Both images came from Google Gemini, which was given nothing but random characters as a prompt.
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Constantin Gonzalez (he/him) @glez.de · 21/09/2026
Looks like Jev is quite diplomatic.
Screenshot of a Jev app card for the question 'is pineapple good on pizza,' with the AI's answer 'depends' in a yellow bubble. Below, four scored breakdown rows with progress bars: 'Jev says' → it depends (92%), 'How does it feel?' → flat (92%), 'What is it about?' → food (100%), 'Fits the wall?' → yes (99%).
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Constantin Gonzalez (he/him) @glez.de · 15/09/2026
Oh, that’s a bummer! I hope they make that configurable.
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Constantin Gonzalez (he/him) @glez.de · 14/09/2026
Starting to read Dungeon Crawler Carl. Think Hitchhiker meets Hunger Games meets D&D. Yes, fun! www.goodreads.com/book/show/21...
goodreads.com
Dungeon Crawler Carl (Dungeon Crawler Carl, #1)
The apocalypse will be televised! Welcome to the first …
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Constantin Gonzalez (he/him) @glez.de · 09/09/2026
Hmm. Bluesky doesn't let me edit posts, but Mastodon does. Means that if I use klausi’s bluesky-mastodon-mirror to mirror my posts, then correct the Mastodon one, it happily syncs the corrected one back. Data Syncing. One of the hardest problems ever in computer-science…
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Constantin Gonzalez (he/him) @glez.de · 09/09/2026
Awesome print-to-e-ink project. What a simple and obvious, yet rare idea! Makes me want to build it myself. nishantjosh.dev/blogs/how-to-build-…
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Constantin Gonzalez (he/him) @glez.de · 09/09/2026
Sitting on a couch in a Subdued store, waiting for my girls to find something they like. This may take a while.
Selfie of a man with a gray beard, wearing a teal t-shirt under an open gray-blue linen shirt, sitting on a brown tufted leather couch with a slightly amused, raised-eyebrow expression. Behind him, racks of clothing — shirts, jackets, sweaters — line a boutique store.
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Constantin Gonzalez (he/him) @glez.de · 09/09/2026
Awesome print-to-e-ink project. Wat a simple and obvious, yet rare idea! Makes me want to build it myself. nishantjosh.dev/blogs/how-to...
nishantjosh.dev
How to build a f**king printer · Nishant Joshi
If you're giving me e-paper, I'm going to make an e-printer.
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Constantin Gonzalez (he/him) @glez.de · 05/09/2026
Correction: “Sea Salt & Paper” My phone’s auto-correction corrected the wrong way. pandasaurusgames.com/products/sea...
pandasaurusgames.com
Sea Salt & Paper
Order the Extra Salt and/or Extra Pepper expansion! Create an ocean from folded paper! Assemble your hand of cards, play their effects, and take the initiative to stop the round. Will you dare to give...
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Reposted by Constantin Gonzalez (he/him)
JP @jpbrammer.bsky.social · 05/09/2026
wait... geometry is amazing....
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Constantin Gonzalez (he/him) @glez.de · 05/09/2026
Playing ”Seal Salt & Paper“ with my family.
Six origami-style illustrated cards laid out on a cream wall: one card above showing a red-and-tan paper crab tucked among folded dark-blue rock formations, and five cards below it in a row — a blue wavy-patterned card back, a pink card with red coral-like origami shapes, a stack of cards with a tan geometric paper-fold back, a dark grey card with a small red origami crab and a numbered icon, and a yellow card with a red origami crab and grey-purple shell shapes.
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Constantin Gonzalez (he/him) @glez.de · 04/09/2026
Oklab solves a problem I always felt but never could quite articulate well: RGB colors make sense technically, but our eyes see differently. One of those concepts that you can‘t un-see, once you learned about them. bottosson.github.io/posts/oklab/
bottosson.github.io
A perceptual color space for image processing
From personal project to industry standard Introduction added in 2025 When introduced Oklab in 2020, I never expected it to reach as far as...
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Constantin Gonzalez (he/him) @glez.de · 31/08/2026
Breakfast in the making.
Overhead view of a black induction stovetop with four golden-brown pancakes cooking in a nonstick frying pan on the left burner (set to 7), and a stainless steel stovetop espresso maker (moka pot) sitting on an unlit burner to the right.
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Constantin Gonzalez (he/him) @glez.de · 30/08/2026
Sure! Gotta support indie bloggers where we can! 🤗
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Constantin Gonzalez (he/him) @glez.de · 30/08/2026
Looking myself for an answer here. Bootloader and objkt were mentioned before but how are they better? Why not self host and/or self publish? All you need is a credible source of truth for who owns a piece, and a credible identity to put in there. Both can be handled by the artists themselves.
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Constantin Gonzalez (he/him) @glez.de · 29/08/2026
Sure thing! Not many people run their own blog on their own domain. I wish there were more!
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Constantin Gonzalez (he/him) @glez.de · 29/08/2026
Just finished building my friends page: constantin.glez.de/friends/ Do you have a friends page, too?
constantin.glez.de
Friends – Tech, work, and what comes next.
Tech, work, and what comes next. Real understanding for experienced professionals navigating AI-powered change.
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Constantin Gonzalez (he/him) @glez.de · 27/08/2026
For a new pet project, I need a reproducible pseudo random number generator. I don‘t like dependencies, so I‘m reading up on how to implement them here: prng.di.unimi.it
prng.di.unimi.it
A PRNG shootout
A shootout comparing popular pseudorandom number generators by speed and statistical quality (BigCrush, Hamming-weight dependencies). Also describes the xoshiro/xoroshiro and MWC families, with C sour...
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Reposted by Constantin Gonzalez (he/him)
Camille Roux @camilleroux.com · 26/08/2026
La thèse de l'article : les LLMs récompensent l'expertise. Sans elle, vous obtenez du correct. Avec, vous orientez, vous virez ce qui sonne faux, vous proposez mieux. Le goulot d'étranglement, ce n'est pas le modèle, c'est vous. ⬇️ www.seangoedecke.com/llms-reward-ex…
Article de Sean Goedecke du 24 juillet 2026 expliquant que les LLMs récompensent l'expertise dans un domaine donné plutôt que simplement la capacité à formuler des questions, contrairement à l'idée reçue que n'importe qui peut obtenir les mêmes résultats.
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Constantin Gonzalez (he/him) @glez.de · 25/08/2026
Just finished reading @art.camilleroux.com’s article about generative art (art.camilleroux.com/writing/algo...). And then I opened Bluesky and found out he decided to follow me there just 8 hours ago. What a coincidence! Thanks for the article, Camille, and thanks for following, too!
art.camilleroux.com
Algorithmic Art: From Discovery to a Drop with a Leading Studio
Translated from the French. The original, Art génératif : de la découverte à la publication d'un projet dans un studio prestigieux, is on my personal site. One deliberate change in this version: where...
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Constantin Gonzalez (he/him) @glez.de · 25/08/2026
@raydalioofficial.bsky.social’s Economic Machine video finally helped me make sense of world economics. So I built myself a weather station for it. Turns out the model is simple, but the data behind it is a swamp. Here’s the story and the tool I built: constantin.glez.de/posts/2026-0...
 painting of a small brass weather station on a wooden platform built into a grassy clifftop above a mirror-calm sea at golden hour. A copper cup anemometer stands beside a large brass barometer whose dial face is completely blank, and a compass rose is inlaid into the deck. A black-and-tan dachshund in a red polka-dot bandana sleeps beside them. Far away on the horizon, a single small rain squall falls from one isolated cloud.
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Constantin Gonzalez (he/him) @glez.de · 11/08/2026
Breakfast today, prepared by my wonderful daughter:
A poached egg dusted with black pepper, resting on a pale green lettuce leaf on a teal ceramic plate, with two halved cherry tomatoes and silverware on a floral napkin beside it.
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Constantin Gonzalez (he/him) @glez.de · 10/08/2026
Who could have predicted that turning PDFs into Markdown is a killer app for AI? lnkd.in/eAiG4Y96
lnkd.in
LinkedIn
This link will take you to a page that’s not on LinkedIn
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Constantin Gonzalez (he/him) @glez.de · 09/08/2026
Good evening, Munich!
Dramatic sunset sky in pastel tones – orange and pink hues streak across the clouds, with dark tree silhouettes and a few rooftops visible in the foreground.
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Constantin Gonzalez (he/him) @glez.de · 09/08/2026
Baking some home-made breakfast rolls (”Brötchen“ in German), while Claude Code on my mobile is building software for me. Livin’ la vida Claude-a, I guess…
Photo taken through the open door of a Bosch oven, showing a timer counting down from 29:48. On a parchment-lined baking tray sit eight round dough buns in two rows, each with a filled dimple on top — four topped with sesame seeds, four with poppy seeds. A person in a dark t-shirt is reflected faintly in the oven’s control panel above.
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Constantin Gonzalez (he/him) @glez.de · 08/08/2026
awealthofcommonsense.com/2026/08/the-...
awealthofcommonsense.com
The One Wish Willow Economy - A Wealth of Common Sense
Obsession is one of the best movies of the decade. It’s also one of the best stories in recent film history. Writer-director Curry Barker is 26 years old. The budget for the movie was just $750k. It’s...
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Constantin Gonzalez (he/him) @glez.de · 06/08/2026
For over fifteen years I thought I was doing my taxes. I wasn’t. I was working an unpaid shift for the tax office. Illich called it shadow work. This summer I handed my tax shift to an AI. constantin.glez.de/posts/2026-0...
A paper collage: a man walks out through a lit doorway while his shadow, made entirely of cut-out receipts, stays hunched over a desk and keeps working. A small dachshund sits in the paper pile with a receipt on his head.
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Constantin Gonzalez (he/him) @glez.de · 28/07/2026
Perplexity is encouraging a move to their Agent API over the old Sonar API, and it’s indeed much better. So I built myself a new Perplexity Agent MCP and an llm CLI plugin (there wasn’t any) with Claude Code. Both work great! Full story, repo, lesson, etc. here: constantin.glez.de/posts/2026-0...
Five open books on a wooden table in a sunlit library, each sending a coloured ray of light up into a glass orb, which combines them into a single white beam.
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Constantin Gonzalez (he/him) @glez.de · 23/07/2026
Everyone should know SIMD: mitchellh.com/writing/ever... Great article by Mitchell Hashimoto, read it!
mitchellh.com
Everyone Should Know SIMD
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Constantin Gonzalez (he/him) @glez.de · 20/07/2026
If you feel tired after a day’s work of working with agents, you’re in good company: lots of people agree that the very thing we invented to make our work easier is… more exhausting? Some thoughts (and recommendations): constantin.glez.de/posts/2026-0...
A bearded male chef wearing glasses, a white chef’s coat, and chef’s hat stands in a modern kitchen with modern kitchen appliances visible behind him. He holds a spoon in one hand and a recipe card in the other. Four small white robot assistants with round heads, yellow eyes, and gold accents wearing chef’s hats stand around him, helping with cooking tasks. The kitchen features stainless steel countertops, hanging copper pans, open flames on the stove, fresh ingredients, and recipe cards clipped to an overhead rail. The scene depicts a futuristic collaborative cooking environment blending human expertise with robotic assistance.
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Constantin Gonzalez (he/him) @glez.de · 17/07/2026
Wocheneinkauf im #FoodHub.
Einkaufswagen mit nachhaltigen Lebensmittelverpackungen vor einer Wand. Das Schild im Hintergrund bewirbt das FoodHub-Konzept: “HALLO, SCHÖN DASS DU DA BIST – gemeinsam, fair, handeln” mit dem Motto “Die Revolution im Einkaufswagen”. Hashtags: #GEMEINSAM #FAIR #HANDELN #dierevolutionimeinkaufswagen
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Constantin Gonzalez (he/him) @glez.de · 14/07/2026
Elvis the dachshund is chilling against some @somafm.com Groove Salad beats…
A black-and-tan dachshund curled up tightly asleep on a plush grey dog bed, nose tucked toward his front paws, wearing a light-colored collar. Warm lighting gives the fur and the grey fabric a slightly purplish-orange tint.
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Constantin Gonzalez (he/him) @glez.de · 12/07/2026
Dinner for the family tonight:
Overhead view of a rainbow-striped Cobb salad on a white plate on a wooden table: diced avocado, seasoned tofu cubes, fresh tomato pieces, quartered hard-boiled eggs, and marinated artichoke hearts arranged in neat rows, finished with cracked black pepper.
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Constantin Gonzalez (he/him) @glez.de · 12/07/2026
Mit @rolfk und vielen anderen auf der PRÜF-Demo in München, Geschwister-Scholl-Platz. ✅ pruef-demos.de/bayern
Selfie von zwei lächelnden Männern in blauen Shirts bei einer Demonstration auf einem sonnigen Platz vor der Ludwig-Maximilians-Universität in München. Hinter ihnen eine große Menschenmenge mit Schildern und Sonnenschirmen, darunter ein Pappschild mit der Aufschrift ‚Das wird man ja wohl noch prüfen dürfen!’ und Schirme mit ‚Omas gegen Rechts’. Im Hintergrund das helle historische Universitätsgebäude und Bäume unter blauem Himmel.
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Constantin Gonzalez (he/him) @glez.de · 08/07/2026
1996: "Computers you can talk to? Whoa, that would be sooo cool!" 2026: "Stop those stupid, slop-generating, hallucinating LLMs!" ¯\_(ツ)_/¯
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Constantin Gonzalez (he/him) @glez.de · 06/07/2026
Do you have a now-page? Everybody should have a now page! nownownow.com Yesterday, I updated mine: constantin.glez.de/now/
nownownow.com
personal websites with a /now page
nownownow.com: personal websites with a /now page
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Constantin Gonzalez (he/him) @glez.de · 05/07/2026
About to watch ”Downbeat“ during Munich Filmfest. Very new movie — only 15 votes on IMDB so far, but 9.0/10 😮. (Yes that emdash is genuinely mine.) www.imdb.com/title/tt3936...
imdb.com
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Constantin Gonzalez (he/him) @glez.de · 03/07/2026
😀. Kann ich nachvollziehen! Erst *während* meiner ersten Festanstellung bin ich auf die Idee gekommen, meine eigene Domain (mit eigener Email-Adresse) zu registrieren. #DasWarenNochZeiten
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Constantin Gonzalez (he/him) @glez.de · 03/07/2026
TIL: ”kayfabe“. (Via @daringfireball.bsky.social)
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Constantin Gonzalez (he/him) @glez.de · 01/07/2026
According to bambamramfan.github.io/ai-compass/, I‘m a true believer, and my patron saint is Amanda Askell. I can live with that! (Via @simonwillison.net )
Screenshot of an “AI Compass” web quiz result from bambamramfan.github.io. A scatter plot with axes from “Bad” to “Good” (vertical) and “Overhyped” to “Transformative” (horizontal) shows the user’s position as a glowing blue dot in the upper-right “Transformative/Good” quadrant, surrounded by smaller dots in various colors. Below the chart, a result card reads “YOU ARE… The True Believer,” subtitled “patron saint: Amanda Askell,” with description text: “AI is real, it’s powerful, and handled with genuine care it can be one of the best things we ever build. You think hard about its character, what it’s like, what we owe it and it owes us. You’re optimistic the way a thoughtful person is optimistic — clear-eyed, not starry-eyed.” Stats at the bottom show “Impact: +4.3” and “Valence: +2.2.”
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Constantin Gonzalez (he/him) @glez.de · 29/06/2026
Wenn wir ehrlich sind, kann man das auch von Menschen behaupten. Dafür haben wir seit Jahrtausenden Befehlsformate, Protokolle und Prozesse entwickelt (Bsp.: „Vier Augen Prinzip“). Sowas sehe ich in der KI-Welt auch: Claude Code ist z. B. ein aufwändiges Prozess-Gestell rund um mehrere LLMs.
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Constantin Gonzalez (he/him) @glez.de · 29/06/2026
It was released 2025, but apparently got re-released internationally (I live in Germany) this year due to it‘s success. They actually translated details like phone screens into German language, too!
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Constantin Gonzalez (he/him) @glez.de · 29/06/2026
Watched ”Obsession“ on Sunday. What a masterpiece! Great acting, cinematography and masterful direction on a minimal budget. I hope they get many, many awards. www.imdb.com/title/tt3728...
imdb.com
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Constantin Gonzalez (he/him) @glez.de · 23/06/2026
Over time, I’ve learned to accept and understand so many different flavours of music. They’re all fascinating! For something completely different, I recommend watching this performance by Angine de Poitrine: www.youtube.com/watch?v=0Ssi...
youtube.com
Angine de Poitrine - Full Performance (Live on KEXP)
YouTube video by KEXP
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Constantin Gonzalez (he/him) @glez.de · 23/06/2026
Here’s one question you can ask yourself once a week. Would the people I respect be proud of what I made with AI? Full blog post: constantin.glez.de/posts/2026-0...
constantin.glez.de
You’re in the driver’s seat: will you choose to stay awake with AI? – Tech, work, and what comes next.
„Nah ist / Und schwer zu fassen der Gott. / Wo aber Gefahr ist, wächst / Das Rettende auch.” — Friedrich Hölderlin, Patmos (1803) (Near is, / and difficult to grasp, the god. / But where danger is,…
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Constantin Gonzalez (he/him) @glez.de · 23/06/2026
The twist: across three independent domains (learning, decision-making, attention), the same AI produced opposite outcomes depending on how it was used. Mode matters more than tool.
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Constantin Gonzalez (he/him) @glez.de · 23/06/2026
It turns out AI can quietly cost you in four distinct ways: → atrophy of a capacity → sycophancy (it agrees when you need pushback) → displacement (cheap substitute for real connection) → hijack (a thousand side-quests)
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Constantin Gonzalez (he/him) @glez.de · 23/06/2026
A few weeks ago, a reader pushed back on my Cyborg-writing post: “You are literally training your brain to surrender executive function to external sources.” Good challenge. So I went looking.
A cozy indoor scene showing a decorative brass birdcage with one yellow and green budgie inside, along with a mirror where the bird's reflection is visible, a water dish, and a perch. The cage sits on a wooden table next to a potted plant. To the left, a window overlooks trees with two birds perched on a branch singing. A stack of books and part of an armchair are visible in the foreground, and beige walls with vertical paneling complete the warm, homey setting.
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