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Web developer; former head of engineering at Flickr, author of Building Scalable Web Sites, and co-founder and CTO of Slack.

• homespring.js — A JavaScript interpreter for Homespring

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Programmer; wrote Redis and hping, and blogs about C, systems programming and working alone.

• picol — A Tcl interpreter in 500 lines of code

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Austrian developer. Created the libGDX game framework, and more recently the pi coding agent, which moved with them to Earendil — Armin Ronacher's company — in April 2026. Writes at mariozechner.at.

• What if you don't need MCP at all?

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Austrian developer. Created the libGDX game framework, and more recently the pi coding agent, which moved with them to Earendil — Armin Ronacher's company — in April 2026. Writes at mariozechner.at.

• Infinite Footguns: Writing a JavaScript Interpreter in JavaScript

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Interactive fiction author and hacker; wrote Spider and Web and Hadean Lands, and designed the Glulx virtual machine.

• lectrote — The IF interpreter in an Electron shell

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Interactive fiction author and hacker; wrote Spider and Web and Hadean Lands, and designed the Glulx virtual machine.

• quixe — A Glulx VM interpreter written in Javascript

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• bocfel — Fork of the Bocfel Z-machine interpreter

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• YSRun-Single — A single-turn GlkOte wrapper for the YarnSpinner interpreter

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Software engineer who writes the blog Made of Bugs about performance, debugging and understanding computer systems. Previously worked at Anthropic on interpretability, at Stripe on Sorbet, and at Ksplice.

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Programmer and writer known for detailed source code reviews of classic game engines, and author of the Game Engine Black Book series on Wolfenstein 3D and DOOM.

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Co-creator of the Go programming language, of UTF-8 and of the Plan 9 operating system; formerly of Bell Labs.

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