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He Earned $9849 Last Month Teaching What He Knows

Josef Strzibny
  • Josef Strzibny

  • Software Engineer
  • $9849 revenue in 1 month

Josef Strzibny tweets

I made $9849 in revenue this October. 🚀

It’s my best month on Gumroad.

Not this year.
Not since I quit my job mid-2023.
But since I started selling in March 2021.

Incredibly humbled and grateful. 🙏

Josef is a software engineer turned indie maker, and all his products – mostly books – are related to software development.

Asked what his main marketing channel is, Josef replied

I think this year it must be X. But before I had any following here it was my blog.

Good example of a humble guy without a huge following – only ~4K followers on X – sharing what he knows and earning a decent living from it 🤑

Could you do something like this yourself?

It’s the classic “teach everything you know” strategy, per Nathan Barry.

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Updated: March 6, 2025

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