Tech Founder Stack
Mathias KlenkLessons from 2x technical founder & CTO on startups, engineering, and the hard realities of taking tech products from 0 to 1.
| Platform |  | Pricing | Only free issues | Publishes | Weekly |
|---|---|---|---|---|---|
| Issues | 17 | Subscribers | Read | techfounderstack.com |
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Latest Issues
Recent posts by this newsletter. Browse the email archive.
The Importance of Network Effects for Startups
Network effects – where each additional user makes a product or service more valuable to other users – are among the most powerful forces in the tech startup world. Many of the most successful companies of the internet era, from Amazon and ...
Market Always Wins
Early-stage investors often boil startup success down to three factors – team, market, and product. These are like three legs of a stool, all important for stability. There’s long been debate about which leg matters most. Some VCs, like ear...
Agentic Engineering: How AI Agents Are Reshaping Software Development
Imagine asking an AI to build a feature, write tests, and deploy your code – and it actually does it. This isn’t sci-fi anymore. It’s called agentic engineering, a new approach to software development where AI agents can autonomously perfor...
Rethinking the 10x Engineer: From Developer to Force Multiplier in the Age of AI
The term “10x engineer” has been floating around the tech industry for decades. An almost mythical figure believed to be ten times more productive than their peers. But in 2025, with the rise of AI tools and a shift toward collaborative eng...
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Authors
The writers behind this newsletter.
Writing Tech Founder Stack. 2x founder & CTO with 2 exits. Tech entrepreneur by day, DJ by night.
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