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Machiel Reyneke

Machiel Reyneke

Fire engineer turned product manager. I build tools for myself and write about what I learn.

Currently

Leading growth at 10X Investments. Reading, writing, building and parenting and sometimes photographing.

Writing

The Circle Packing Problem For a Watertight Nuclear Strategy The numbers don't add up. But I've been preparing anyway. Our Real Plan A field guide for the newly liberated. Big Boys A poem about fatherhood, time, and what matters.
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Reading

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Photos

Miscellaneous, March–April 2026 View all albums →

Projects

Tools I've built for myself. Not startups, just solutions to my own problems.

Slate

Todo and note app (2026)

Graph-based todos and notes for power users and their AI assistant.

Runistry

Analytics for Garmin runners (2025)

Because if you really like data and want to geek out, you need your own VO2Max algorithms.

Eskom Dashboards

Load shedding visualized (2023)

I needed the dashboards to know whether the problem was terminal or not!