Hi there, I’m Teng, data professional and hobbyist iOS app developer.

This technical blog is a place to share my learning. I also get snarky or nerdy on things I find interesting or irritating, so reader discretion is advised.

Photo: E.C. Manning Provincial Park, July 2022

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Backing Up My Work in 2023

February 13, 2023 • 3:19 PM

🤓Nerding Out

Building Tag Layout in UIKit

February 7, 2023 • 8:44 PM

💾App Development

WWDC Initial thoughts

June 9, 2022 • 9:31 AM

💾App Development

The Best Lens to Use: Let iOS Decide

June 9, 2022 • 9:09 AM

💾App Development

Develop for Shortcuts to Process Images

January 7, 2022 • 10:40 PM

💾App Development

UIApplication Key Window Replacement

November 9, 2021 • 9:30 AM

💾App Development

Ditching HEY, Part III: My Fastmail Workflow

August 22, 2021 • 10:37 PM

🤓Nerding Out

Ditching HEY, Part II: Switching to Fastmail

August 22, 2021 • 10:34 PM

🤓Nerding Out

Ditching HEY, Part I: HEY Sucks

August 22, 2021 • 10:24 PM

🤓Nerding Out

Random Little Things from WWDC 2021

June 7, 2021 • 3:08 PM

🖇️Essays

“Let them eat cake.” — The Shitty Take by David Heinemeier Hansson on the Reduced App Store Cut

November 18, 2020 • 7:22 PM

🖇️Essays

Enumerated Custom Errors in R

September 4, 2020 • 11:58 AM

🛢️Data Analytics

Developers Whining About Apple’s IAP Cut Are Babies

August 15, 2020 • 5:31 PM

🖇️Essays

Replicating Hey’s Focus & Reply with Spark

July 18, 2020 • 1:28 PM

🤓Nerding Out

Published and NSManaged

July 13, 2020 • 11:31 PM

💾App Development

There’s Always a Unique Identifier

July 3, 2020 • 12:00 AM

🛢️Data Analytics

HEY: You Don’t Fix Email in One Step

June 26, 2020 • 10:35 AM

🤓Nerding Out

WWDC 2020 Random Thoughts

June 22, 2020 • 2:51 PM

🖇️Essays

Backing Up My Mac in 2020, Revisited

April 24, 2020 • 3:30 PM

🤓Nerding Out

“Tech Lover” is a Lazy Term

February 19, 2020 • 1:37 PM

🖇️Essays

Backing Up My Mac in 2020

February 14, 2020 • 10:22 PM

🤓Nerding Out

Drawing Canada Maps in R

January 7, 2020 • 12:00 AM

🛢️Data Analytics

Initial Thoughts on Bear App

November 22, 2019 • 10:15 PM

Track Income Tax Payable in Ledger CLI

October 16, 2019 • 12:00 AM

🤓Nerding Out

More on Apple Arcade

October 1, 2019 • 12:00 AM

🖇️Essays

Supporting the Triple Cameras on 11 Pro

September 21, 2019 • 12:00 AM

💾App Development

Top 5 Things Siri Wakes up to

September 12, 2019 • 12:00 AM

🧅Jokes

A Swift Camera Framework

August 27, 2019 • 12:00 AM

💾App Development

How-To: Transfer Files between iPhones with a Thumb Drive

February 25, 2019 • 12:00 AM

🧅Jokes

The ARKit Reading List

March 2, 2018 • 12:00 AM

Subscription Gone Wrong

August 12, 2017 • 12:00 AM

🧅Jokes

A Bilingual Apple Music Experience

April 7, 2017 • 12:00 AM

🤓Nerding Out