In this interview, John Rush discusses his journey building AI-driven tools and his approach to creating a suite of startups under his holding company, MarsX.dev. He shares that his company is currently generating $3.5 million ARR, with SEO Bot being the primary revenue driver at $120,000 MRR, managed by a team of two. Rush details his growth strategies, which include demonstrating the utility of his tools, SEO optimization, cross-promotion, and building in public on social media. He also discusses ListingBot, which generates over $50,000 a month through one-time payments. Rush emphasizes his focus on building an ecosystem of tools for founders and his preference for holding companies rather than selling them. The conversation concludes with Rush providing live SEO feedback on the host's website, emphasizing the importance of backlinks and internal linking strategies.