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Julia Fedorin

@juliafedorin7,202 subscribers

Storytelling @Composio 🎙️🎥 | Prev Marketing @Shopify | @UWaterloo Class ‘26 | Learning French on the side🇫🇷

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Fewer than five people on Earth have built two open-source JavaScript framework companies. Sam Bhagwat is one of them. The book that made him known is now one of the go-to texts for building agents. You’ve seen it: Principles of Building AI Agents. But the part that’s important to his story is the low point before Mastra. When Gatsby faded, the acquisition went sideways. They went off to build sales AI and failed for months, then came back to open-source dev tools and instantly felt like they were back on track. His word for it: the "unknown knowns." The things you know so well you forget you know them. They'd forgotten they were world-class at the exact thing they walked away from. I sat down with him at Y Combinator, where Mastra went through the Winter 2025 batch. We got into: •Why "that's interesting" is the most dangerous thing a user can tell you •Why planning in quarters is dead, it's actions-per-minute now •Why it's okay to quit your idea •Writing a print book in an era that moves too fast to print •The loneliness nobody talks about: teams stopped pair programming because everyone's driving their own agent His rule, from a YC partner: generosity breeds luck. 𝐓𝐈𝐌𝐄𝐒𝐓𝐀𝐌𝐏𝐒 (00:00) Intro — Y Combinator (01:30) What Mastra Is (03:00) Content Wants to Be Frequent (05:00) Shipping a Tier-One Feature Every Day (07:00) The $13M Seed and $22M Series A (09:00) Turn-Based vs. Real-Time Strategy (12:00) Why Experience Beats Fresh Eyes (15:00) "That's Interesting" Means They're Not Interested (18:00) It's Okay to Quit Your Idea (21:00) The Book That Started as a Joke (25:00) From Journalism to Open Source (28:00) The Netlify Acquisition, and What It Cost (32:00) The Unknown Knowns (36:00) The YC Winter '25 Takeoff Story (40:00) Remote Work Is Underrated in the Age of AI (44:00) The New Loneliness of Building With Agents (47:00) What He Still Can't Figure Out About Agents

Julia Fedorin

35,776 views • 1 month ago

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Inside Stripe's MPP IRL: machine payments, stablecoins, and the future of agent commerce. Agents are starting to pay for things on their own: API calls, services, each other. Nobody's agreed on how that should work. This panel was three takes on it. Jen (Stripe) leads product for Machine Payments — the open standard for how agents pay for things. Dan Romero (Tempo) is building stablecoin payment rails, and thinks that's what agent commerce runs on, not cards. Michael Blau (Royal) magician turned a16z Crypto partner turned CTO is exploring programmable money for creators, and why the demand side is barely here yet. We got into: • Why HTTP 402, a status code from the early web, is suddenly the backbone of agent payments • Why Dan thinks a credit card is a private key and why stablecoins are safer for agents • Where stablecoins actually win first • Whether you should build for agent payments now or wait • Why the demand side is "virtually nonexistent" and what that means if you're building 𝐓𝐈𝐌𝐄𝐒𝐓𝐀𝐌𝐏𝐒 (00:00) Event Kickoff JEN LEE — Product Lead, Stripe (00:44) What the Machine Payments Protocol Is (01:28) How MPP Works — the HTTP 402 Payment Challenge (03:25) Adoption So Far: ~30,000 Transactions (04:04) Building Trust — Shared Tokens & the Link Agent Wallet (05:56) What the Creator Economy Looks Like When the Audience Is Agents (07:15) What She Was Certain About at 22 That's Now Wrong DAN ROMERO — GTM, Tempo (08:34) Meet Dan (08:49) Why Stablecoins, and the Genius Act Tailwind (09:48) "A Credit Card Is Basically a Private Key" (11:19) Should Every Company Be Thinking About MPP? (13:03) What to Be Wary Of (15:15) Where Stablecoins Win — Payouts, Remittances, DoorDash MICHAEL BLAU — CTO, Royal (16:36) Meet Michael (17:13) From Magician to a16z Crypto to CTO (17:57) Team Over Idea — His a16z Takeaway (18:26) "The Demand Side Is Virtually Nonexistent" (19:03) Closing

Julia Fedorin

24,128 views • 29 days ago

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She quit $10K/month, left her 32,000-person community in Korea, and moved to San Francisco to build a startup... "You have to be delusional enough to think it will work, but extremely objective about the data." Cailyn Yong (Cailyn Y.) built Momo in public since day one: every pivot, every burnout, every co-founder breakup, documented for thousands to watch. She wasn't just building a product, she was building trust at scale and turning it into distribution. We sat down at Founders Inc, the place that changed everything for her, to talk about AI memory, building in public, and why the hardest part of founding had nothing to do with the product. Since our convo, Cailyn is now embarking on a new journey. Follow her to see what she's up to next👀 𝐓𝐈𝐌𝐄𝐒𝐓𝐀𝐌𝐏𝐒 (00:00) Intro (02:00) Leaving $10K/Month to Go All In on Momo (06:00) Getting Into Founders Inc. (From an ER in Vietnam) (09:30) "Get the F*** Off Localhost" (14:00) The Startup Graveyard: Eddie & CtrlX (17:00) Five Co-Founder Trials & What Trust Means (26:00) What Burnout Really Feels Like (33:00) People Relationships Are the Hardest Part of Founding (40:00) Delusional Enough to Think It'll Work (46:00) Building in Public: Dying Trend or Strongest Moat? (51:00) Three Memory Architecture Experiments (58:00) The OpenClaw Plugin & How Composio Fits In (01:05:00) Going Viral on X & Getting Her First Paying Client (01:11:00) Film School Dreams & The Billion-Dollar Vision This is a Composio "Agents at Work" podcast, where I chat with founders building the next leap of AI. Follow for more :)

Julia Fedorin

44,183 views • 2 months ago

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When Lovable, the hottest AI coding company in the world quietly tried to acquire Rork, Daniel Dhawan mentioned it offhand to investors who had been on the fence. They went from completely uninterested to sending term sheets overnight. That's how he closed a $18M round. Rork is the world's largest AI mobile app builder. It one-shots any app, publishes directly to the App Store, generates screenshots, and with Roark Max, replaces Xcode entirely in the browser. Bolt and Lovable tried to crack mobile. They couldn't. Because they'd never shipped mobile apps. Daniel and his co-founder Levan Kvirkvelia have spent their entire careers doing exactly that and it shows. 𝐓𝐈𝐌𝐄𝐒𝐓𝐀𝐌𝐏𝐒 (00:00) Intro (00:08) What Is Rork (01:06) Raising Amid Noise (03:25) Lovable Acquisition Buzz (05:06) Meet Daniel Dhawan (06:38) First Startup Origins (08:34) Coding Since Eleven (09:42) Culture And Motivation (11:09) Leaving Russia To SF (15:20) From Web To Mobile Pivot (19:28) George Makes Money (20:38) Launch And Viral Moment (23:25) Why Mobile Wins (26:10) Vibe Coding Explained (29:30) Missionaries Vs Mercenaries (32:30) Co Founder Levan Story (36:24) Who Really Builds Apps (40:19) Apple And Rork Games (41:06) Young Builders And Zaki (42:38) Living in the Future (44:21) SF Group Chat Dynamics (48:37) Eastern Europe and Soft Power (51:54) Authenticity in the AI Era (54:47) Why the Name Rork (56:54) Hiring Bar and Team Growth (01:00:52) Underdog Hacks and Shortcuts (01:04:10) Long Term Vision and Social Lifts (01:09:24) What If You Win Mindset (01:10:53) Trust Your Intuition (01:14:03) DMing for Hidden Talent (01:15:36) Final Thanks and Wrap This is a Composio "Agents at Work" podcast, where I chat with founders building the next leap of AI. Follow for more:)

Julia Fedorin

42,861 views • 2 months ago

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Adil moved to San Francisco and caught Sam Altman on the street within 48 hours. He asked him the funniest thing he'd seen someone do with @ChatGPTapp. The video hit half a million views. Half the comments were "how did you do that." The other half were "why'd you ask such a stupid question." That's kind of the whole point of what he's building. Before SF, Adil Mania. was the "TikTok startup guy" in France. Millions of views, celebrity interviews, the French Shark Tank on TikTok. Then he quit at the top in 2023, because everything looked perfect from the outside and something was wrong on the inside. He took a break, and came back with something more global. Now he runs Silicon Mania, and the mission is simple: MAKE TECH FUN AGAIN. His read is that tech markets itself terribly: people are scared of Waymos and suspicious of AI not because the products are bad, but because nobody tells the story well."It's a marketing problem, not a product problem." His advice for anyone who wants to build what he's building: There's space. Hollywood has thousands of studios. Tech has maybe five people making it fun. We need hundreds. Don't come to SF to start. Start anywhere. Come here to make it big. 𝐓𝐈𝐌𝐄𝐒𝐓𝐀𝐌𝐏𝐒 (00:00) Intro (01:30) The Buzzer & Silicon Mania's Latest Drop (04:00) The TikTok Startup Guy in France (07:00) Why He Quit at the Top in 2023 (10:00) Build Space, Farza & the Road to SF (13:00) Interviewing Arnault, Macron & Getting Punched by a Bodyguard (17:00) How to Approach Anyone for an Interview (20:00) Catching Sam Altman 48 Hours Off the Plane (24:00) "Make Tech Fun Again" & Use the Waymos (28:00) The City Should Be a City, Not a Hotel (32:00) How He Makes the Recaps (Nano Banana + Grok) (36:00) Why Companies Should Reach Out to Creators (40:00) A67Z Company, the Netflix Method & Building for the GOATs (44:00) Deadlines Over Perfection (48:00) $40K a Month & the Trap of Chasing Money (52:00) Be Alone (Not Lonely) (56:00) Be Yourself — There's Only One You This is a Composio "Agents at Work" podcast, where I chat with founders building the next leap of AI. Follow for more :)

Julia Fedorin

13,685 views • 1 month ago

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