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Making practical sense of software and AI.

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Substack
PricingFreemiumPublishesWeekly
Issues207Founded7 years agoLast Issue2 days ago
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Latest Issues

Software Eng for Vibe Coders: On Frontends + Backends

Vibe coding is amazing. But do you actually understand what you’ve built, so you can maintain and improve it over time?

This 6-part Technically series, Software Engineering for Vibe Coders, teaches you everything you need to know about how...

2 days ago
53
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Dispatch: Kimi K3 licensing, Liquid AI, and stacked PRs on GitHub

Between product launches, model updates, new companies, giant funding rounds for so-called “business context for your agent” companies, and the dreaded license change, I can safely say that this is the craziest time for developer tools + in...

4 days ago
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How do "computer use" agents work?

You might’ve heard of these “autonomous” agents that run 24/7 on your computer.

They use your computer to do things like order a smashburger, or book a flight to Cancun (YOLO). You might even have one running, right now, on a new Mac Mini....

7 days ago
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2

What is Rust?

If you haven’t read part 1, go do that, or you might be…rusty...

In part 1 I explained why there are so many different programming languages: because languages come with tradeoffs, and everyone wants to choose their tradeoffs differently....

16 days ago
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What's Harness Engineering?

The TL;DR

An AI model on its own can only talk.

A harness is the software wrapped around it that lets it actually do things: touch your files, run your tools, and remember what happened.

  • An AI model by itself only answers a promp...
23 days ago
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Authors

The writers behind this newsletter.

  • Justin

    explaining software and AI for the people

  • Sachin

    Infrastructure ethnography

  • Sarah Krasnik Bedell

    Growth, analytics, builder, & advisor. Growth @ Railway, and recovering data engineer. BA Johns Hopkins, MS Northwestern.

  • Matt Henderson

    I lead growth at Sentry. This is where I share what I'm learning out loud about devtools, digital, OOH, AEO, and building growth functions.

  • Sung Won Chung

    Big 4 CPA → self-taught data engineer → dev tools seller at dbt Labs, Datafold, Tobiko. Two Fivetran acquisitions later, I write about career philosophy, macro trends, game theory, and the incentives that shape how we behave.

  • Paul Iusztin

    Senior AI Engineer • Founder @ Decoding AI • Author @ LLM Engineer’s Handbook ~ I ship AI products and teach you about the process.

  • Tereza Tizkova

    Growth @ Factory | First hire & Founding Member @ E2B | Math Grad | I like snowflakes

  • David Krevitt

    Site reliability engineer at Technically

  • Afzal Jasani

    Background in data engineering, solutions architecture, and GTM across Fivetran, dbt Labs, and Tobiko Cloud. Writing about AI infrastructure, LLM tooling, and GTM in AI.

  • Christy Bieber

    Typing words online for 16+ years. AI enthusiast with concerns.

  • Will Raphaelson

    Product guy interested in slick tooling, infra, o11y, and what makes the tech world go 'round. Ex-Confluent, Capital One, Prefect, and more.

  • Sam Schneider

    Due Negligence

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