keremcan.workspace
keremcanREADME.md

Welcome to my workspace

Keremcan Yesildag.

I make opinionated software. Most of it helps people learn.

Launchific

launchific.com ↗

Repeatica

Turns your notes into flashcards and schedules reviews so you remember them. On phone, desktop, web, and in your browser.

iOS · Android · Web +7repeatica.md

Also: Kognific, Readometry, Solocrafter, Expendica.

Writing

All writing →

Connect Codex to Xcode 27 with MCP

Connect Codex to Xcode 27's MCP server, enable headless access, search Apple's local documentation, and install Xcode skills for every project.

iOS Development · 9 min read

Let SQLite Do the Work: Efficient Data Fetching in Core Data

Optimize your Core Data fetches by pushing filtering and sorting to SQLite instead of handling it in Swift.

iOS Development · 10 min read

What is Protocol-Oriented Programming in iOS and How It Differs from Object-Oriented Programming

Protocol-Oriented Programming is a paradigm that shifts the focus from what an object is (its class) to what an object can do (its capabilities).

iOS Development · 7 min read

Follow along

Where I post what I'm building and writing.