How One Dev Built a $12K/Month Screenshot API Solo

Two years ago, Dmytro Krasun walked away from a comfortable software engineering job with a good salary and a clear career path. Not because things were going badly — but because he'd had a childhood dream of building something of his own, and the itch never went away. So he quit, started experimenting, and kept building. Recently, he hit $10,000 MRR. At the time of this post, he's sitting at $11,597 — edging toward $12K — with 280 paying customers and a single product: ScreenshotOne, a screenshot API for developers.

Here's the framework he used to get there.

Step 1: Play to Your Super Skill

Dmytro's first and most important decision wasn't *what* to build — it was *what category* to build in. As an experienced backend developer, he knew APIs. He understood how they worked, what developers expected from them, and how to build one well. So he made a rule for himself: only build API products.

Why this matters: Most people drown in ideas. Having a constraint —