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 #1: Fork Git Client

A hands-on review of Fork, a fast native macOS Git client for managing branches, commits, diffs, and repositories from the terminal.
January 1, 2026

Prevent Core Data Migration Crashes in iOS

Learn how to prevent Core Data migration crashes in iOS, including manual and lightweight migration pitfalls caused by external storage for Binary Data.
December 28, 2025

Run Scheduled Jobs in Swift Vapor with Redis

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.