Episode 2 of The Bootstrapped Tech Founder explores the rise of 'indie' solo developers who are building profitable, high-revenue software businesses without venture capital or large teams. We dive into the specific case of Marc Köhlbrugge, the solo founder behind the design tool BetterLink—a simple link-in-bio service that grew to over $2 million in annual recurring revenue with zero employees. Lucas and Luna break down how he did it: targeting a specific pain point, keeping costs near zero, and resisting the pressure to scale with headcount. We also discuss the broader trend of bootstrapped micro-ISV (independent software vendor) businesses, with data from TinySeed and Indie Hackers showing that over 60% of profitable solo founders generate more than $100,000 in annual profit. The episode examines the trade-offs of staying small, the economics of solo development, and why more software entrepreneurs are choosing this path. Listeners will walk away with a concrete example of how one person can build a multimillion-dollar software company without outside funding.