Vibe Coding Workshop

YPO Gold US Capital · September 22, 2026

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Who we are

Jordan Zietz

CEO & Co-founder

Stanford Management Science & Engineering
Co-founded Fizz ($200M valuation)
The 44th Stanford Tree
Sport skydiver

Daniela Munoz

CTO & Co-founder

Carnegie-Mellon Dual-Degree, Computer Science and Human-Computer Interaction
Ex-Google and Microsoft
Scuba diver
Loves dogs, a lot

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Building AI models that get you customers

Jordan and Daniela at Y Combinator Demo Day

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Companies are going AI native

↶ ↷ Inbox • Work

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Arrange By: Date Received ⌃

▾ Today

Sam Taylor NowI can't check out on the website

Hi! I'm trying to place an order…

Jamie Chen 10:42 AMRe: The Everyday collection

Thanks for your help!

Customer support 9:30 AMYour weekly summary

Here's your support activity this week.

▾ Yesterday

Alex MorganSeptember product photographs

The final images are ready to review.

OperationsShipping update

All orders are on their way.

I can't check out on the website

ST

Sam TaylorTuesday, September 22 at 10:48 AMTo: Customer Support

Reply Reply All Forward ⋯

Hi there,

I'm trying to order the Everyday mug, but nothing happens when I click “Pay now.”

Could you help me finish checking out?

Thanks,
Sam

Support agent is on it

Items: 5 All folders are up to date.

monday work management

Workspace / Product & engineeringJD

Website improvements ⌄

☆ ⋯

Main tableTimelineKanbanDashboard＋

New item ⌄ SearchPerson FilterSortHide

This monthOwnerStatusTimelineDue datePriority+

Website checkout bug

ClaudeDoneSep 22★★★★★⋯

Finalize product photographyJLDoneSep 15★★★★★⋯

Refine the fall collectionAMWorking on itSep 19★★★★★⋯

Review checkout analyticsSTStuckSep 22★★★★★⋯

Mobile navigationJLDoneSep 26★★★★★⋯

Next monthOwnerStatusTimelineDue datePriority+

Launch the Everyday collectionAMWorking on itOct 10★★★★★⋯

Refresh the product pagesJLDoneOct 13★★★★★⋯

field-and-form / storefront

Search or jump to…

⌘ K

TS checkout.ts M ×

// Create a customer before starting paymentconst customer = await getOrCreateCustomer();const checkout = await createCheckout({  customerId: customer.id,  items: cart.items,  currency: "usd",});return redirectToCheckout(checkout.url);

TERMINAL PROBLEMS

✓ New customer checkout

✓ Returning customer checkout

✓ Payment session created

3 passed (0.84s)

Claude Code⋯

Fix the website checkout bug.

The customer record was missing for first-time buyers.

I’m adding getOrCreateCustomer() and running the checkout tests.

Edited checkout.ts+ 6 − 1

Open#182

Fix website checkout

Handle new customers before creating a payment session.

All checks passed

fix-checkout → main

Ask a follow-up…

fix-checkout* TypeScript UTF-8 Ln 12, Col 1

fieldandform.example / checkout↻

Objects Our storyfield & form Secure checkout

Handmade sand-colored stoneware mug on limestone beside natural linen

THE EVERYDAY COLLECTION / 01

A little pause.
A daily ritual.

The Everyday mugStoneware / Sand

ORDER NO. 1048

Good things
are on their way.

Thank you, Sam.
Your Everyday mug has a new home.

Payment confirmed Confirmation sent to sam@example.com

Back to the collection

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What is vibe coding?

Using plain language to build things.

common ground.

A little time. A big idea.

LET’S CONNECT

Good ideas
start here.

30 minGoogle Meet

Your hostCommon Ground Studio

PICK YOUR MOMENTAvailable this week

September 2026

Eastern Time · US & Canada

AVAILABLE TIMES

Tuesday, Sep 22

30 minutes. All yours.

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Tools you'll be using

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Writing a successful prompt

Be specific

Give context

Take small steps

Build a website where customers can choose a birthday cake and request a pickup date. I run a neighborhood bakery. Most customers order on their phones, and we need two days to prepare a cake. Build the landing page first, then we'll move on to ordering.

I'll start with a mobile-friendly landing page for your bakery, then we'll build the ordering experience together.

Ask a follow-up…

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Why context is so important

SummaryBakery website with a cake menu, pickup calendar and message box.

Can customers collect their cake on Sunday?

What are your Sunday opening hours?

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Things we've built

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Open Claude Code

1

claude.ai/code ↗

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Connect your GitHub repo

2

Return to Claude Code. Click + Select repository… and choose ypo-workshop.

Claude Code repository picker showing ypo-workshop

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Connect your Claude to Vercel

3

Scroll down and click Allow Access. Return to Claude to confirm Vercel is connected.

Vercel authorization screen with Allow Access button

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Connect your Claude to Supabase

4

Supabase opens: pick your organization, then click Authorize Claude.

Supabase authorization screen for Claude

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Let Claude set up your projects

5

Once your repo and connectors are ready, paste this.

Check that you can reach this GitHub repo and my Supabase and Vercel connectors. Create a project called ypo-workshop in Supabase and in Vercel. Build a simple starter website in this repo, connect it to the Supabase project, and deploy it to Vercel as a production deployment so anyone can open the link. Save your work directly to the main branch. From now on, redeploy after every change you make. Never put secret keys in the code. The Supabase public key in the website is fine. Ask me before choosing anything that costs money. When it works, give me the website link and the project links. If a tool or permission is missing, tell me the exact next step.

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What to do when you get stuck

Have it interview you

Before you build, interview me. One question at a time.

Give it a reference

Make it feel like this screenshot.

Say exactly what's off

The button works but it's below the fold. Move it next to the price.

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Helpful tips to remember

Talk before you build.

Let's plan this first. Don't build anything yet.

Ask questions. Constantly.

What's an "API"? Explain it like I run a restaurant.

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Thank you!

jordan@lemonlime.com

daniela@lemonlime.com

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Vibe Coding Workshop

Who we are

Jordan Zietz

Daniela Munoz

Building AI models that get you customers

Companies are going AI native

▾ Today

▾ Yesterday

I can't check out on the website

Website improvements ⌄

Fix website checkout

A little pause.
A daily ritual.

Make it yours.

Good things
are on their way.

What is vibe coding?

Good ideas
start here.

You’re booked.

Tools you'll be using

Writing a successful prompt

Be specific

Give context

Take small steps

Good ideas
start here.

You’re booked.

Why context is so important

Things we've built

Open Claude Code

Connect your GitHub repo

Connect your Claude to Vercel

Connect your Claude to Supabase

Let Claude set up your projects

What to do when you get stuck

Have it interview you

Give it a reference

Say exactly what's off

Helpful tips to remember

Talk before you build.

Ask questions. Constantly.

Thank you!

Vibe Coding Workshop

Who we are

Jordan Zietz

Daniela Munoz

Building AI models that get you customers

Companies are going AI native

▾ Today

▾ Yesterday

I can't check out on the website

Website improvements ⌄

Fix website checkout

A little pause.A daily ritual.

Make it yours.

Good thingsare on their way.

What is vibe coding?

Good ideasstart here.

You’re booked.

Tools you'll be using

Writing a successful prompt

Be specific

Give context

Take small steps

Good ideasstart here.

You’re booked.

Why context is so important

Things we've built

Open Claude Code

Connect your GitHub repo

Connect your Claude to Vercel

Connect your Claude to Supabase

Let Claude set up your projects

What to do when you get stuck

Have it interview you

Give it a reference

Say exactly what's off

Helpful tips to remember

Talk before you build.

Ask questions. Constantly.

Thank you!

A little pause.
A daily ritual.

Good things
are on their way.

Good ideas
start here.

Good ideas
start here.