Mario Zechner

@badlogic@mastodon.gamedev.place
5.1K Followers
486 Following
3.7K Posts
libGDX, Beginning Android Games, RoboVM, Spine. Member of the council of Warios.
webhttps://mariozechner.at
githubhttps://github.com/badlogic
twitterhttps://twitter.com/badlogicgames
Mario Zechner5d ago

Recommended reading.

https://timdettmers.com/2025/12/10/why-agi-will-not-happen/

Mario ZechnerDec 10

I've integrated Mistral AI models in my little coding agent harness pi and am happy to report that Devstral 2.0 is a good agentic model. Somewhere between Sonnet 4.0 and 4.5. It's also OSS and self-hostable (though you need a small cluster for the bigger model, e.g. via DataCrunch)

Europe is back, baby.

Mario ZechnerDec 10

Absolutely fantastic long read by @pluralistic

Recommended reading!

https://pluralistic.net/2025/12/05/pop-that-bubble/#u-washington

(I also seem to have graduated from kid to guy)

Pluralistic: The Reverse-Centaur’s Guide to Criticizing AI (05 Dec 2025) – Pluralistic: Daily links from Cory Doctorow

Mario ZechnerDec 5
somepxNov 21

"There are so many free fonts, why would anyone buy yours?!"

and yet… 🤷‍♂️

https://itch.io/s/158296/40-pixel-fonts-for-40-dollars-thats-it-thats-the-sale

Mario ZechnerDec 5

Recommended reading with lots of good thoughts and stories by @grumpygamer

https://arstechnica.com/gaming/2025/12/after-40-years-of-adventure-games-ron-gilbert-pivots-to-outrunning-death/

After 40 years of adventure games, Ron Gilbert pivots to outrunning Death

Interview: Storied designer talks lost RPG, a 3D Monkey Island, “Eat the Rich” philosophy.

Ars Technica
Mario ZechnerDec 2

New blog post, wherein I tell you what I learned building my own opinionated and radically minimal coding agent.

With way to many words. Ask an LLM to summarize it for you.

https://mariozechner.at/posts/2025-11-30-pi-coding-agent/

What I learned building an opinionated and minimal coding agent

Lessons I learned while building my own coding agent from scratch.

Show threadMario ZechnerDec 1

If you want a minimal coding agent, with many creature comforts, you can give pi a try:
https://github.com/badlogic/pi-mono

Supports any model you can throw at it, including local models or models you "self-host" on providers like EU-hosted and GDPR-compliant DataCrunch. In case you do not want to share all your data with big tech.

GitHub - badlogic/pi-mono: Monorepo for pi packages: TUI library, agent framework, and pod management CLI

Monorepo for pi packages: TUI library, agent framework, and pod management CLI - badlogic/pi-mono

GitHub
Mario ZechnerDec 1

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.

Show threadMario ZechnerNov 30
The lawyers are going to be filthy rich
Mario ZechnerNov 30

Oi, looks like Anthropic is going to pay a lot of money? (Not to authors like myself, we'll get peanuts, but the lawyers behind the class action).

Going to invest the peanuts I'll get for the 5 editions of my book into our little charity https://cards-for-ukraine.at