The Indie Hacker Podcast with Fexingo · 2026-07-26 · 8 min
In this episode, Lucas and Luna explore the story of Sarah Chen, a solo developer who built ListFix, a simple email validation tool, and grew it to $10,000 in monthly recurring revenue without any paid ads, social media, or product launch sites. Her only marketing channel was her own weekly newsletter. We break down exactly how she built an audience from scratch, wrote case studies that converted readers into customers, and scaled her revenue to 10K MRR in nine months. Along the way, we discuss the economics of newsletter-driven SaaS, the power of niche content, and why sometimes the most effective distribution is the one you control. Plus, we reflect on how listener support keeps the show ad-free. If you're an indie hacker looking for a sustainable, low-cost way to acquire customers, this episode offers a concrete playbook you can adapt. #IndieHacker #SaaS #Newsletter #EmailValidation #ListFix #SarahChen #10KMRR #Bootstrapping #ContentMarketing #SoloDeveloper #DistributionStrategy #NicheMarketing #Business #Technology #FexingoBusiness #BusinessPodcast #IndieHackerPodcast #SaaSRevenue Keep every episode free: buymeacoffee.com/fexingo
Other episodes covering the same guests and topics, from across The B2B Podcast Index.
How a Solo Dev Hit 10K MRR by Tripling Prices Overnight75 / 100How a Solo Dev Hit 10K MRR With a SaaS That Sells to Other SaaS Companies83 / 100How a Solo Dev Hit 10K MRR With a Product Hunt Launch and Nothing Else85 / 100How a Solo Dev Hit 10K MRR With a CLI Tool and No UI72 / 100How a Solo Dev Hit 10K MRR by Selling to Universities76 / 100
