PMFers

PMFers with Paul Berg

In this episode of PMFers, we sit down with Paul Berg—founder of Sablier and creator of PRBMath—to explore his journey from teenage Objective-C freelancer to shipping one of the most widely used token streaming protocols on Ethereum. Paul shares how building Sablier in a bear market helped him learn the art of launching fast, getting feedback on crypto Twitter, and evolving from general-purpose primitives to use case–driven products like onchain payroll and vesting.
We dig into Paul’s love of type safety, his obsession with building great products, and how AI is becoming his junior dev (but not vibe coder). We also talk about the Ethereum accelerator debate, cross-border coordination games, rapamycin, sunk cost fallacies, and why building onchain is still open to the obsessed—even if you’re just starting out.
Whether you’re designing smart contracts, struggling to find users, or wondering what you actually need a blockchain for, this episode is packed with insight from someone who’s been there.

PMFers with Will Warren

In this episode of PMFers, we sit down with Will Warren—co-founder of 0x and one of the earliest minds in decentralized exchange infra. From the wild west of CEXes to pioneering off-chain intents and launching Matcha, Will takes us through nearly a decade of Ethereum’s evolution.
We unpack the birth of 0x, why early dev-fit doesn’t always translate to user-fit, and how building infra without control of your destiny leads to vampire forks. Will shares his biggest pivots—from open order books to developer-first APIs to consumer products—and what it really takes to build sticky onchain experiences.
We also explore the zero-to-one path of onchain exchange, why building tech-first is a trap, the case for scaling Layer 1 without abandoning Ethereum’s values, and how the next generation of builders might emerge from the alumni networks of top crypto orgs. Whether you’re into intents, infra, or impact, this one’s packed with hard-won lessons.

PMFers with Griff Green

In this episode of PMFers, we sit down with Griff Green—Giveth founder, early Ethereum advocate, and longtime public goods champion. Griff shares his journey from the early days of The DAO (and its infamous unwind) to building Unicorn, Pairwise, and other experiments in the “Giveth Galaxy.”
 
We get into what real product-market fit looks like for mission-driven tools, how building for others beats building for yourself, and why relying on grants can quietly kill good ideas. Griff also shares insights from the Orange DAO accelerator, how AI is shifting the dev workflow, and why trust is his superpower. If you’re navigating the gap between impact and sustainability, this one’s packed with hard-won wisdom.

PMFers with Jango.eth

In this episode of PMFers, we sit down with Jango.eth—creator of Juicebox and one of the most thoughtful protocol designers in the space. From making music websites to building roommate apps, Jango’s path to Ethereum started with art, moved through pain points in banking, and culminated in one of the most flexible funding protocols onchain. We dive into how Juicebox evolved from early experiments like Tiles and SharkDAO to becoming the engine behind ConstitutionDAO and the new revenue-backed RevNets. Jango shares hard-won insights on building slowly, designing for sustainability, and why the best infra disappears into the background. We also explore his new omni-chain system, token mechanics, and why Ethereum just needs to not go down. If you’re into protocol design, tokenized revenue, or want to fund your project without begging a VC, this one’s for you.

PMFers with Zefram.eth

In this episode of PMFers, we sit down with Zefram.eth to trace his journey from building iOS apps in middle school to launching onchain products like a decentralized hedge fund DAO in the early DeFi days. He shares hard-earned insights on getting first users, staying focused, validating ideas, and why most successful blockchain apps still revolve around finance. We also dive into AI tools for devs, the long game of onchain gaming, and how the Ethereum ecosystem can better support builders beyond infrastructure.

PMFers with Kevin Owocki

In this episode, Owocki takes us through his early days hacking PHP, the founding of Gitcoin, and what it actually feels like to chase product-market fit onchain. We talk quadratic funding, moonshot bots, accelerators, regen memes, and how to survive (and ship) when everything’s on fire.• Venture Deals by Brad Feld and Jason Mendelson 👉 https://www.venturedeals.com • Green Pill: How Crypto Can Regenerate the World by Kevin Owocki 👉 https://greenpill.party• Chris Dixon – The Idea Maze 👉 https://cdixon.org/2013/08/04/the-idea-maze • Virgil Griffith – Ethereum is a game-changing technology, literally (Canonical post on Ethereum and coordination games) 👉 https://medium

PMFers with Ameen Soleimani

In this episode of PMFers, Austin sits down with Ameen Soleimani (@ameensol)—a pivotal figure in Ethereum’s evolution and a master of memetic engineering. Ameen has played key roles in projects like SpankChain, MolochDAO, Tornado Cash, and now Privacy Pools. Ameen offers an unfiltered look at the challenges and triumphs of finding product-market fit onchain.

PMFers with Martin Koeppelmann

In this episode of PMFers, we’re joined by Martin Köppelmann—co-founder of Gnosis and one of the most consistent voices in the Ethereum space since the early days. From hacking on Bitcoin prediction markets in 2013 to helping launch Safe (formerly Gnosis Safe), CowSwap, Circles, and Gnosis Pay, Martin has been quietly shipping some of the most important infrastructure in crypto—often before the world was ready for it.

PMFers with $Alex Masmej

Alex Masmej on PMF, Speculation, and Moving Fast 🚀💰🔥
 
Alex Masmej joins PMFers to share his journey from launching personal tokens to building speculative social apps and chasing product-market fit. He breaks down how he got his first on-chain users, why he moved fast (and sometimes broke things), and what he’s learned about when to kill an idea vs. when to double down.
 
We dive into Ethereum vs. Solana, the role of speculation in crypto, and why shipping fast + reading on-chain data beats brainstorming. Whether you’re building, investing, or just crypto-curious, this one’s packed with insights. Watch now! 🚀

PMFers with Zak Cole

Zak Cole’s journey to product-market fit is unlike any other—from securing military encryption in Iraq to securing smart contracts on Ethereum. In this episode, he breaks down his early days in crypto, surviving the DAO hack, and how he built Slingshot, Code4rena, and other disruptive projects. Along the way, he shares hard-earned lessons on building in public, testing ideas, and why aggressively forgetting failures is a superpower.
 
We also get into the real product-market fit of Ethereum—is it really a world computer or just the best financial rail ever? Plus, the truth about audits, AI’s role in shipping faster, and why PMF is all about getting the best out of people while moving at top speed. If you’re building, iterating, or just love a good war story, this one’s for you. 🚀