Developer and founder Killian Valkhof tells host Damien Filiatrault how a homemade tool that made his work 60 percent faster became Polypane, a dedicated browser for web professionals. He outlines Polypane’s core features—side-by-side responsive views, built-in accessibility and performance audits, and instant social-media previews—and shares the tactics that keep his one-person, bootstrapped SaaS both profitable and user-driven. Valkhof explains his open feedback channels, no-credit-card trial, and ROI calculator for team budgets, describes spin-off utilities like Superposition and FixA11y, and reflects on why he is holding off on AI features in favor of polished fundamentals.