Cantürk Çelikok
Projects

Not a showcase: four systems running live

I built each one end to end, from a desktop app and a business SaaS platform to a restaurant POS system and a brand website.

Desktop App

Nerdesin: Location Changer App

A Windows app that changes an iPhone's location from a computer, with no jailbreak needed.

Outcome

Live as a desktop product you can try for free within five minutes of installing, with no account or jailbreak needed. Compatible with iOS 16 and later.

ElectronTypeScriptNode.jsWebSocketMaps API
SaaS Platform

PlusTurk: Call Centre and Payments Platform

A calls, debt collection, online payments and SMS platform for law firms, healthcare providers and survey companies.

Outcome

It's used live by law firms, healthcare providers and survey companies, each with industry-specific screens. An end-to-end flow sends the debtor a payment link by SMS, closes the case automatically once payment arrives, and produces a signed 'no debt' letter.

Next.jsTypeScriptPostgreSQLRedisiyzicoPayTRStripe
Business Website

Songnaria Coffee: Café Website

A warm, fast website with booking support for a family café known for its kids' play area.

Outcome

Live as a fast-loading, mobile-friendly business site that's easy to find in search engines; the menu, kids' area and booking information can now be read comfortably on a phone, all in one place.

Next.jsTypeScriptTailwind CSSSEO
POS System

Ayda: Restaurant and Café POS System

A restaurant management system that brings the till, the kitchen display and online orders onto one screen.

Outcome

It's used live in a real café; with the till, kitchen and online orders on one screen, order confusion and waiting times have gone down.

Next.jsTypeScriptWebSocketPostgreSQL