Headlime

Danny Postma's journey to Headlime began in early 2020 during lockdown, when he was reflecting on past projects. Three years earlier, he and a friend had written a book called "Headline Formulas" that sold a few hundred copies. Sitting in his kitchen with a cold matcha, Danny realized: why not turn this book into a tool? Books generate less revenue than tools, and he already had all the content. It was the perfect foundation for a bootstrapped product.

Danny built the first version of Headlime in one month. It was deceptively simple: a "content spinner" with 200 headline formulas that users could customize by filling in variables. The tool would output 200 customized headlines for marketing use. He launched in November 2020 with a clever monetization twist—a limited one-time deal instead of a subscription. The response was explosive: over $60,000 in sales in the first few weeks.

The early success came from the limited deal structure and immediate market demand for copywriting solutions. But everything changed in December 2020 when OpenAI launched GPT-3. Danny quickly secured access to the API and realized the technology could generate nearly perfect marketing copy. He made a bold decision: rebuild Headlime entirely around GPT-3's capabilities. He went "off the grid" for five months, working every waking hour to build version 2.

Version 2 launched in December 2020, and the growth trajectory was staggering. Starting with $1K MRR in December, he hit $20K MRR by February 2021—revenue doubling every few weeks. Danny credits this explosive growth to several factors: building in public on Twitter, where his tweets went viral; the product feeling like "magic" to users; and the massive tailwind of AI hype. His transparent progress updates created a flywheel—bigger accounts discovered Headlime, which led to press coverage on TechCrunch. He listened obsessively to customer feedback, shipping new features (emails, Facebook ads, Google ads) constantly.

What didn't work was the solo founder grind. Running a hypergrowth company alone meant 14+ hour days managing customer support, building features, fighting clones, and marketing simultaneously. Competitors were copying his product, and the psychological burden of protecting his "one golden ticket to wealth" wore on him.

In February 2021, Danny received two acquisition offers from prominent tech startups. He chose to sell to Jarvis.ai for a seven-figure sum in March 2021. At 28 years old, building a successful SaaS from zero to $20K MRR in just 8 months was more than enough. He recognized he enjoys building, not managing. The acquisition freed him to move on to his next project, Rareblocks.xyz, a decentralized marketplace for digital components.