He did YC in 2016 from France with a Slack bot nobody had heard of.

9 years later, he came back… second company, second batch, $10M seed closed in 3 days. Dalton told him: "Don't overlearn."

Quang is the founder of Vybe, a YC W25 company building the internal app layer for the AI era. Before that: Plato, a mentorship platform for engineers he grew to 70 people, raised $22M for, and sold to Coda, where he worked as a GM before quitting to start over.

In this conversation, we go deep on what it actually means to be a second-time YC founder: the overcorrections, the traps, and what's genuinely different about YC today vs. 2016.

In this episode, you'll learn:

→ Why hiring zero people after raising $10M was the wrong overcorrection, and when Quang finally figured that out

→ How selling before the product was ready backfired, and what First Round's Liz told him to do instead

→ YC's self-fulfilling prophecy: how the program became a distribution machine, and why seed rounds that took 3 weeks in 2016 now close in 3 days

→ Why Vybe is quietly pivoting from "build internal apps" to "agents that use those apps", and what inspired it

→ The three-component PMF framework First Round runs with every portfolio company (and where most founders skip straight to step 3)

Chapters:

00:00 Raising First 150K

00:30 YC Roaster Sponsor

01:14 Meet Quang Twice YC

02:03 Discovering YC In France

05:37 Slack Bot Breakthrough

06:34 Product Hunt To YC Interview

07:49 Silicon Valley Network Effect

13:47 Why Expense Reports Question

15:59 Getting The Acceptance Call

17:02 Moving To Mountain View

18:46 Building Bots In YC

20:31 Pivot To Plato Mentorship

22:02 Acquired By Coda

22:49 Coda Vs Retool Pain

26:37 Replit Agent Sparks Vibe

27:33 Internal Apps Are Still Hard

28:52 Quitting Coda For Vibe

29:00 Co Founder Wealthfront Pain

30:07 Back To Y Combinator

30:26 Avoiding Overcorrection Traps

31:48 Hiring Lessons And Rebound

34:33 Selling Too Early Too Hard

37:39 Five Customers Before Scale

39:17 Product Market Fit Framework

42:08 Claude Code Threat Or Tailwind

44:52 Open Claude And Apps Disappear

46:46 Vibe Agents And Integrations

49:10 YC Then Vs Now

55:49 Wrap Up And Subscribe

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🦞 Lobster Talks is the YC insider podcast for investors. New episodes weekly.

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