The build log

Turning developer skills into businesses, with the numbers attached

LifestyleAugust 29, 2025Author: Tibo

The (re)birth of Devmystify

More than a decade ago, I started the earliest version of this site, as nothing more than a scrappy personal blog. It changed names a few times, but the spirit stayed the same: share what I learn, as I learn it. Over the years that became tutorials and books—mostly around Ruby on Rails—aimed at helping other developers level up.

> one email a week, real numbers

The other half of the job

You can already build. The free ebook answers the rest: which business is right for you, the real numbers behind each path, and the ladder to climb without quitting your job.

join 2,700+ developers · unsubscribe anytime · no spam, only receipts