Karmel Salah, home

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Current project

QSwapie

A virtual queue for busy cafés, restaurants and shops, where you can offer to swap places.

My role

Founder

Founder. I invented the swap-your-place idea and designed how a fair, non-custodial swap and payment settle in one transaction; I lead the on-chain program and the web app.

Timeline
Details coming soon.
Stack
Solana, Anchor, Next.js
Status
Web app live at qswapie.de. Payments are non-custodial and on Solana devnet (a test network): no mainnet, no live money.

Problem

Queues at busy cafés, restaurants and shops waste time. QSwapie is a virtual queue: scan a rotating QR code to take a number, and offer SOL to swap places. Built on Solana: non-custodial, devnet test.

Role

Founder. I invented the swap-your-place idea and designed how a fair, non-custodial swap and payment settle in one transaction; I lead the on-chain program and the web app.

Details coming soon.

Approach

Details coming soon.

Stack

Details coming soon.

Results

Details coming soon.

Details coming soon.

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correspondence

Schedule a call or book a coffee

Pick a free time in my calendar. It opens Google Calendar in a new tab; nothing loads before you click. Or write to hello@karmelsalah.com.