Mario Zechner

libGDX, Beginning Android Games, RoboVM, Spine. Member of the council of Warios.

web: https://mariozechner.at
github: https://github.com/badlogic
twitter: https://twitter.com/badlogicgames

Last Notes

2026-05-31 01:52:12 GMT

I wrote up how I built the shitty robot so you can too. This was a fun project that will keep on giving.
Thanks to all the open weights folks out there, without whom this would not have been possible.
https://mariozechner.at/posts/2026-05-30-shitty-robot/

2025-12-01 01:56:07 GMT

Built my own coding agent harness called pi. Think Claude Code/Codex. Ran it through terminal-bench 2.0. Screenshot 2 has the full system prompt. That's it. It also only exposes 4 tools to the model: file read/write/edit and bash. Each tool description is no longer than 1-2 sentences. It has no web search, no compaction, no auto-retries.
It hilariously placed #7 on the leaderboard using Anthropic's Opus 4.5 model, beating Anthropic's own Claude Code harness, and most Codex variations.
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/115/641/808/541/402/231/original/8cef0505788d3be2.png
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/115/641/814/438/570/690/original/f546a8d3f7ff8abe.png

2025-11-29 09:26:25 GMT

I give you a publication in Nature with the title "Bridging the gap: explainable ai (sic) for autism diagnosis and parental support with TabPFNMix and SHAP"
https://www.nature.com/articles/s41598-025-24662-9
Passed peer review. And we're not even talking about the actual fucking content ("Explainable AI for Autism diagnosis", fuck everything about that).
The world is slowly going insane.
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/115/632/262/645/214/812/original/cbe7a07eaefb8636.png
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/115/632/263/414/210/125/original/8c4b76a2dce1acce.png

2025-11-11 00:13:13 GMT

No wonder the European Union goes down the shitter. We are governed by absolute morons.
https://www.iccl.ie/press-release/scientists-call-on-the-president-of-the-european-commission-to-retract-ai-hype-statement/
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/115/528/169/267/996/606/original/fb24240869397f29.png

2025-11-02 10:47:39 GMT

Had a little scraping fun with Austria's yellow press. German explainer, sadly, no English captions.
https://www.youtube.com/watch?v=4rvPK6jB3l4
Let me explain. In Austria, governments feed the media with government funding and ads. No matter the party.
A few years ago, they invented yet another money funnel: digital transformation funding. Young online media explicitely excluded, aimed at establisehd media houses only.
They submit project proposals, a politically appointed jury waves them through. 🧵
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/115/479/686/495/396/998/original/fdfb237e8d7e3129.png
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/115/479/702/251/731/969/original/4266b130aff137cd.png

2025-10-31 00:46:11 GMT

@npub1fdr…lvhs talked to the Verge and called me "the kid in Austria who scraped all the web prices of the two major grocers".
I'm 41 years old. 🫠
https://www.theverge.com/podcast/809081/enshittification-cory-doctorow-platforms-ai-monopoly-big-tech-interview
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/115/466/013/311/012/901/original/47f2061bb278b814.png

2024-12-27 21:38:41 GMT

The web can be a cool place.
Jacob from Toronto has been inspired by my grocery price data mining bullshit and started scraping Canadian stores earlier this year.
He has lots of data, and needs help. Want to do something fun, educational and possibly useful?
Here:
https://jacobfilipp.com/hammer/
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/113/726/946/272/663/095/original/570ada5342bd73ae.png
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/113/726/947/658/314/674/original/ada3e866b264497e.png

2024-12-04 02:22:40 GMT

I have a bunch of services that need to communicate with each other. Here's a NodeJS based service trying to a C++ based service.
Using Node's built-in fetch(), I get 3 req/sec.
Using Node's http.request(), I get 8100 req/sec.
Not a typo. Can anyone explain what's going on? I understand that fetch() will have some overhead due to being largely compatible with the browser fetch. But this is too much.
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/113/592/160/285/704/020/original/a34802ec7c0ff6c6.png
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/113/592/163/752/151/729/original/7d338ec7136670dc.png

2024-11-16 07:43:02 GMT

As a professional, I forgot to unplug the little contraption over night.
Charger turned off at 4.1V, nothing exploded.
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/113/491/507/162/882/531/original/daf18296795e7f25.jpg

2024-09-15 21:33:02 GMT

- reply

Also works on Windows, Linux, and macOS. Could make it work on Web via Emscripten and in DOS as well, alas...
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/113/143/706/777/508/728/original/e6c97634d6713c49.png

2024-09-15 21:31:32 GMT

Well, well, well, guess I got myself a little gaming hardware thing going.
Coming soon to a Git repository near you.
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/113/143/681/019/061/434/original/128bd39aef6cdf55.png
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/113/143/702/307/229/549/original/f1ad34086ed477a4.png

2024-09-13 20:45:59 GMT

60fps bear
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/113/132/198/483/796/780/original/8f93924f9c006a20.mp4

2024-08-06 14:43:14 GMT

Guess the issue and how long it took to figure it out...
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/112/915/604/658/825/258/original/397e104c2732c9f3.png