As we wrap up the 50x hackathon wins, here we go:
I won $2,500.
A kid from India. A laptop. Late nights. No fancy office. No safety net.
Just a belief that financial privacy should not be a luxury.
That belief paid off.
PrivatePay won $2,500 at the Build on Aptos Hackathon.
The first on-chain untraceable, unidentifiable private payments on
@Aptos.
Not a mockup. Not a pitch deck. A real product.
Stealth addresses. ECDH. DarkPool mixing. Payment links as simple as Stripe.
Because Alice won a hackathon. Bob traced every winner’s wallet in minutes. And I refused to accept that this is “just how crypto works.”
People asked me if I was crazy for building privacy when everyone else was shipping another DEX.
I kept building anyway.
Sleepless nights. Broken demos. Cryptography that fought back. Specs rewritten until they were airtight.
Then Cursor with Kiro entered the chat.
Specs. Steering. Hooks. MCP. Vibe coding for speed. Spec-driven for the parts that cannot be wrong.
48 hours. 50+ components. 100% test coverage. 0 security holes in production.
This is not just prize money.
This is proof that a builder with a story, a real problem, and the courage to ship can still win.
To every student grinding in a hostel. Every founder building in silence. Every developer who thinks they are “too late.”
You are not too late.
Your story is the product. Your pain is the pitch. Your demo is the proof.
If this made you feel something — drop a ❤️, share it with a builder who needs this today, and tell me in the comments:
What is the dream you are still too scared to ship?
I am reading every single one.
How you actually win a hackathon like this (steal this):
1. Solve a real wound, not a cute idea. Judges remember stories they can feel. PrivatePay started with a wallet getting doxxed.
2. Ship a working demo, not a slide. Live URL. Real txns. Let them click.
3. Use the sponsor’s tools like a weapon, specs + steering + hooks + MCP in a public /.kiro folder. Judges score how you built, not just what you built.
4. Polish the first 30 seconds. If they don’t gasp, they don’t score you.
5. Make it look inevitable. Clean UI. One sentence value. “Stripe links, but every payment is a new invisible wallet.”
6. Submit early. Sleep. Then submit better. The last 20% of polish is what separates $0 from $2,500.
Live:
private-pay-nk7r.vercel.app/
Thank you,
@Aptos @NareshKx @riseinweb3. Thank you to every person who told me to keep going.
This one is for the dreamers who still build at 3 am.
#PrivatePay #Aptos #Web3 #Hackathon #BuildInPublic #Privacy #FromZeroToOne