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Napkin Math

by Charlie & Sabba
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Latest episodes

  • Inside San Francisco’s AI Gold Rush: Moats, Harnesses & Opus 5.5

    October 30, 2026 · 19 min

    We spent a week in San Francisco at peak AI hype: speaking at conferences, attending OpenAI’s Dev Day, and visiting founders’ offices in Palo Alto. Here’s everything we learned. Timestamps: 0:00 Intro0:33 Everyone is building the same…

  • $1M Startup Ideas - 3 Frameworks

    October 19, 2026 · 12 min

    In this video, I share 3 practical frameworks for discovering startup ideas with proven market demand, backed by real-world examples from founders in Ramen Club, the founder community I run. I also break down the 3 common mistakes that…

  • How I Got First Users For My $100M Startup

    September 2, 2026 · 28 min

    How to get your first 100 paid customers with no audience, no money and no experience. Charlie on the brute-force phase behind VEED's first million users, the Y Combinator rejection that forced a paywall up in one weekend, and the napkin…

  • $1M Scanner App Ideas

    August 5, 2026 · 29 min

    The identifier app category is quietly exploding and most people still haven’t noticed. Some of these apps are generating $1M–$20M in ARR. In this episode, we break down the full playbook: using keyword data to find the right niche, the…

  • How Dyson Turned Vacuum Cleaners into a Billion Dollar Empire

    July 3, 2026 · 57 min

    In this episode, we break down how James Dyson, one of the world’s most iconic inventors and entrepreneurs, turned Dyson into a multi-billion-dollar company by questioning everyday products, embracing thousands of failed prototypes, and…

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  • From $0 to $1M+: Inside Tiiny Host's Bootstrapped Journey with Elston Barretto

    June 22, 2026 · 1 hr 9 min

    Elston Baretto, founder of Tiiny Host, joins us to break down how he grew his drag-and-drop file hosting platform to 2M+ users with zero market research. We cover the SEO and PLG tactics that got him to $100K, the freemium/trial tweaks…

  • How We Reinvented VEED for the AI Era

    June 13, 2026 · 20 min

    From building one of the first browser-based video editors to facing an existential threat from AI, Sabba breaks down the hard decisions, failed experiments, and strategic pivots that transformed VEED from a traditional SaaS company into a…

  • The Vibe Coding Gold Rush: 3 Ways to Make Your First Million

    May 26, 2026 · 51 min

    Three concrete ways to build a million-dollar business on the back of the vibe coding boom. Specialized AI coding tools, security, and education with live napkin math, real company examples, and keyword research througho…

  • How Tally Hit $5M ARR by Staying Small & User-Obsessed

    May 19, 2026 · 1 hr 9 min

    Maria Martinez, co-founder of Tally — a bootstrapped form builder that hit over $5M ARR since 2020 — joins Sabba and Charlie to break down how she and her husband Philip built a profitable SaaS business in a fiercely competitive market…

  • How to Reduce Churn in Subscription Businesses

    May 12, 2026 · 1 hr 8 min

    A practical breakdown of churn: what it is, why it varies by market, how to tell good churn from bad churn, and the product, marketing, pricing, and activation moves that reduce it. The episode focuses on identifying sticky users…

  • How Yasser Bootstrapped Chatbase to $10M ARR in 3 Years

    May 5, 2026 · 1 hr 2 min

    Yasir, CEO and solo founder of Chatbase, joins Saba and Charlie on the Napkin Math podcast to break down how he bootstrapped an AI customer support platform from a PDF chatbot side project to $10M ARR in just 3 years — starting before…

  • How Ben Pasternak took Sabba's App and made millions

    April 28, 2026 · 51 min

    A founder's stolen app, AI image gold rushes, and why London might just be the next Silicon Valley — all on the back of a napkin. Timestamps:00:00 - Intro00:41 - The stolen app story08:54 - Lessons from the App Store11:36 - Vibe shuffles &…

Full episode archive on Apple Podcasts →

About the show

Join Sabba Keynejad (co-founder of VEED.io) and Charlie Ward (founder of Ramen Club, Ramen Space & Cosy) as they dive deep into the world of startups, AI, and the latest tech trends. These two legends of the London indie scene bring their no-nonsense, real-world insights to help founders, builders, and indie hackers navigate the highs and lows of entrepreneurship. Expect candid conversations, actionable takeaways, and the occasional hot take on where the future of business is headed. Whether you're bootstrapping your way to success or scaling your next big idea, Napkin Math is your go-to podcast for unfiltered discussions on what it really takes to win in the startup game.