Shawn Baek

iOS Engineer · Traveller

I build native applications for Apple platforms, SDKs, and open-source libraries, while sharing what I learn about Swift, server-side Swift, engineering leadership, and travel.

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Selected Projects

iPhone · iPad

TravelCrumb

A native travel budget app for tracking expenses, converting currencies, and understanding your spending on the go.

App Store

iPhone · iPad · Apple Watch

ShadowTeep

An on-device shadowing app that turns your own notes into repeatable English and Chinese speaking practice.

App Store

macOS · Singapore

CityCommuter

A native macOS transit planner for finding efficient public transport routes across Singapore.

App Store

macOS · Coming Soon

RoleFit CV

A native macOS app for tailoring your career history to a target role and exporting polished PDF resumes.

Coming Soon

TABLE

Swift Package

Table

A Swift library inspired by JavaScript’s console.table(), with support for Unicode, CJK, emoji, and os.Logger.

GitHub

360°

Experimental · Swift Package

GoProVideoKit

An Apple-native Swift package for loading and inspecting GoPro MAX and MAX2 .360 videos with AVFoundation.

GitHub

Latest Engineering Notes

May 3, 2026

MacOS Native App Review series #1 – Git GUI Tool – Fork

I’ve used fork app for more than 5 years now. This app is light, built by native. It’s fast and easy to manage git…
January 1, 2026

Tip for preventing crash issues when you migrate CoreData

Learn how to prevent CoreData crash issues during migration. Covers manual migration, lightweight migration, and common pitfalls with Binary Data external storage options in…
December 28, 2025

Swift Vapor: How to run a scheduled job

Step-by-step guide to setting up scheduled jobs in Swift Vapor using Redis. Covers Redis installation, AsyncScheduledJob creation, and Vapor queue configuration for Server-Side Swift.