András Ferencz
Newsletter platform

Substack

A publishing platform for newsletters, where readers subscribe by email.

Visit engineeringos.substack.com
How I use it

Where Engineering OS, my newsletter, is read.

What it is
Newsletter platform
On my tools page
Running the business
Updated
November 2026

Where I write about Substack

Articles on this site that mention it.

Nov 18, 2025 · Freelancing

From Photographer to Mobile Engineer: My Journey of Reinvention

I just uploaded my second YouTube video.

More in Running the business

Every tool I use
Free · one emailThe Unattended AI Runbook: 25 checks for AI that runs while you sleep25 checks for AI jobs that run on their own, in five lists: before it runs, while it runs, when it fails, when it writes, and the proof it worked. Each has the story behind it.Get it free