brief-generator.de writes German DIN 5008 letters in the browser and prints them so the address sits in the envelope window. How the tests check real printouts, how licences work without accounts, and why there's no build step.
The full autopsy of the Postmint launch: 118 visitors in eight days, zero external signups, a landing page that bounced people in five seconds, and an analytics goal that never fired once.
Postmint turns one sentence into a finished social graphic in your brand colors. How it works, why it never generates pixels, where it loses to Canva, and what it costs.