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I vibe-coded a $20M YC app in a weekend, here's how🧙‍♂️ 🪄

Sunil Kumar Dash on June 02, 2025

I realised that many companies offer no-code platforms to their users for automating workflows. The numbers were kinda shocking. I spent a week ...

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sentinelae • Jun 3

I MS Painted a $10 trillion painting in a few minutes to be displayed at Louvre Museum, here's how:

I throw a bunch of meaningless crap together...

Then I clickbait.

Then I say it's 80% there.

Shivansh Singh • Jun 3

LOL

Charpie • Jun 4

☝️

Mayank Raj • Jun 3

clickbait: must clarify that a weekend of Vibe coded garbage did not get into YC neither its valued at 20M.

This is like making a line follower robot on your desk and calling it Tesla.

Sunil Kumar Dash • Jun 3 • Edited

Sorry to break your bubble

Rasmus Schultz • Jun 3

and you thought "the world needs more of that"?

Kristian Ask • Jun 2

Made any money of it yet? Then there's the 80/20 rule of development.

Sunil Kumar Dash • Jun 3

This is for the love of the game

Emmanuel Chijioke • Jun 4

What is the 80/20 rule of development? 🤔

Kristian Ask • Jun 5

If 80% is done with 20% of effort the remaining 20% will take the remaing 80% of effort

James D Ingersoll (Ghost King) • Jun 2 • Edited

Appreciate the transparency at the end there. That last line about it not being fully ready for the real world stood out... felt like the only human breath in a sea of AI-gen content.

If you're ever interested in diving into agent systems built for autonomy and real-world deployment, I've been pushing the boundaries with my DataOps Terminal v2.0 NLP to CL, dual-screen interface, and a full cognitive agent loop with live data, memory, and observability.

GitHub: github.com/GodsIMiJ1/dataops-terminal

Post: dev.to/ghostking314/dataops-termin...

(Open-source AI agent interface, built for research & education.)

Ludányi-Eszterházy Zoltán • Jun 2

Total useless...

Nevo David • Jun 2

crazy how much you cranked out just by rolling with it tbh - ever hit a point where the speed starts biting back or does moving fast help you spot what matters most?

Parag Nandy Roy • Jun 2

The fact that this level of complexity is now weekend-buildable is wild....love the breakdown

Sunil Kumar Dash • Jun 3

Thanks @parag_nandy_roy

Dotallio • Jun 2

Yes! The real struggle is always UX and auth flows, not the code itself. Curious - if you could pick one thing to polish next, what would it be?

Sunil Kumar Dash • Jun 3

It's definitely the UX; the most difficult part was app integrations for agentic flow, but Composio took care of it.

Shrijal Acharya • Jun 2

We've come a long way with these AI models. Great work, Sunil!

kamran2121 • Jun 2

This looks interesting, I was trying replicate something simillar, great read.

Alexhales67 • Jun 2

mmm interesting

Mr VICTOR • Jun 3

sweet

Samuel Boczek • Jun 3

Just use NodeRed...

Johan Prins • Jun 3

I built a custom rocket in my backyard to launch to Mars, beating SpaceX, using AI. I will soon write my article about how. But gpt 4.1 was my sniper.

Darie Dee • Jun 3

Smh. Composio is your own product and you're using this click bait here to market it in a way that "composio took care of it", "composio this" "composio that".

Genuinely market a product, if it's good, people will hop on it, it it's not good, then you know. But seeing what you did in a weekend, if that's any consolation, then we know Composio would be full of bugs.

Hate click bait.

Rasmus Schultz • Jun 3

Click bait advertising for "Composio", which I don't even care to find out what is.

This app needs a dislike button.

ClaireElaine Molnar • Jun 3

So what makes it worth $20M? And you didn't mention anything about Y Combinator?

Julian Harris • Jun 3

Oh you meant Zimbabwe dollars 🤦‍♂️

Aref Karimi • Jun 3

Bro played with a couple of SaaS apps and called it a $20M app!!

Goscha Graf • Jun 3

Oh, it's an ad for Composio.

ngl, still some cool tidbits here and there!

Piyush Goel • Jun 3

Clearly a promotion post for composio than any other benefit. Good marketing.

Nikoloz Turazashvili (@axrisi) • Jun 6

Overview: The development of a customizable no-code platform aimed at enhancing agent-oriented workflows highlighting the importance of robust programming and integrations.
No-Code Platforms
- Many companies offer no-code platforms for automating workflows.
- Existing platforms primarily designed for workflows rather than for agents.
- Agents require customization to handle complex decisions and orchestration, which is often overlooked.
Objective
- Create a platform that prioritizes agent customization and dynamic routing.
- Showcase the robustness of Vibe coding for building sophisticated applications quickly.
Technology Stack Selected
- NextJS selected for the vibe-coding stack due to ease of deployment.
- Composio chosen for adding unlimited SaaS app integrations with automatic auth management.
- Comparison of frameworks highlighted LangGraph for graph-based workflows over AI SDK for its convenience.
Core Components Developed
- Five fundamental nodes built:
  - Input Node: Data entry point.
  - Output Node: Result output point.
  - LLM Node: Makes decisions.
  - Tool Node: Executes actions.
  - Agent Node: Combines LLM and tools for convenience.
Integration Management
- Composio’s SDK simplifies tool integrations and manages various auth flows.
- Reduces time spent on OAuth from months to weekends.
API Execution Process
- A single JSON graph represents workflows, with nodes and edges defining connections.
- Key steps taken when executing a user-initiated run:
  - Graph validation.
  - Topological sorting for execution order.
  - Node execution based on type with state management.
Authentication Management
- Initially challenging, resolved by creating a user-friendly modal for tool authentication.
- Inclusivity of various auth types, ensuring smooth integration experiences.
  - API Keys, OAuth2 tailored for hosted and custom installations.
Orchestration Patterns Implemented
- Developed nodes for several agent orchestration patterns based on Anthropic’s guide:
  - Prompt Chaining: Sequential processing.
  - Parallelization: Concurrent processing with aggregation.
  - Routing: Dynamic decision-making by router agents.
  - Evaluator-Optimizer: Solution generation with iterative evaluation.
  - Augmented LLM: Tool calls dialog enhancement.
Final Outcome
- Prototype completed within 48 hours, showcasing the potential of agent platforms.
- Emphasis on the importance of understanding user needs and design over technical challenges.
- Code available on GitHub for community contributions and enhancements.

made with love by axrisi

Arber • Jun 3

What a humble dev, even after making $20M he hasn't forgotten about the rest of us lol

Bill Baran • Jun 4

Ironically the headline above the one that brought me here, "Advice from exec that survived the .com crash: Don't be a fraud!"

Nathan Tarbert • Jun 4

Pretty crazy how much you pushed in a weekend - I always end up spending ages on tiny UI stuff too, so respect for just grinding through it and shipping.