This founder turned a Tinder-style swipe into a $70K/month SaaS. Meet Gaurav. He built Fastlane, an AI short-form marketing tool for solopreneurs. Launched 2 months ago. Already doing $69K MRR and over 1,000 paid users. The UI is the whole insight: Middle card = the video Fastlane made for your product Left card = a trending piece of content in your niche (this one had 3M views) Swipe right = schedule Pick TikTok, Instagram, or YouTube AI writes the caption Post live in under 5 minutes He didn’t guess this design. He earned it. Gaurav and his co-founder did 20 customer calls a week since August. 2,000 calls total.