Petar Georgiev did not start PostFast by chasing a glamorous category. He was a Bulgarian full-stack developer with years of failed or slow projects behind him, and he kept running into the same practical marketing problem: to promote those projects, he had to write the same core idea, adapt it for X, Bluesky, LinkedIn, Instagram, TikTok and other platforms, then manually copy, paste and schedule everything across dashboards.

The first version was not a SaaS at all. According to the MRR Story interview, PostFast began as a simple script connected to n8n so Petar could publish to a few platforms for himself. That kept the product grounded in a real workflow. When it became a web platform, he deliberately focused on saving time and making cross-platform publishing reliable instead of copying the broad enterprise feature set of tools like Buffer or Hootsuite.

The live PostFast product now backs up that positioning: schedule once across 11 platforms, tailor posts per network, manage calendars and analytics, bulk import content, work with agencies and teams, and connect AI or automation workflows through MCP, ChatGPT and Claude connectors, n8n, Zapier, Make and a REST API. The wedge is not social media magic. It is a cheaper, cleaner operating layer for people who already have to publish everywhere.

Petar built it around a full-time job, evenings and weekends, after more than four years of indie-hacker tuition. By the April 2026 MRR Story profile, PostFast was profitable since December 2025, trusted by roughly 1,898 creators, and doing about €4,000 in monthly recurring revenue. The lesson is unfashionable but valuable: boring, reliable, affordable workflow software can beat exciting ideas when it removes a weekly task customers already hate.