Greg Heo

Conferences & Talks

When I’m not being a total recluse reading up on the latest reference documentation, I sometimes pop up at tech conferences and meetups around the globe.

I’m currently on conference talk hiatus but have delivered a good number of talks on topics ranging from iOS architecture, the Swift programming language, and concurrency.

Past Talks

Fun With Flags
Toronto CocoaHeads 🌮, Toronto 🍁, january 2019

Swift, Synchronization, and Semaphores. Why is multi-threaded code so difficult, and how can semaphores help?

Concurrency From the Ground Up
360iDev, Denver 🏔, august 2018

What are the fundamental building blocks of concurrency underneath the APIs we use every day?

What is the simplest hash implementation? How about the worst? What is a hash anyway? And why does it matter?

Shared or Mutable: Pick One
AltConf 2018, San Jose 🇺🇸, june 2018

Should it be shared or should it be mutable? Why not both?

Augmented Reality; Crafted Reality
Craft Conf, Budapest 🇭🇺, may 2018

What does crafting augmented realities teach us about crafting better software?

Getting Under Swift’s Skin
NSMeetup, San Francisco, february 2018

Three ways to get under Swift’s skin: reflection, debug toolchains, and SIL

Compiler Sanitizers for Fun and Profit
iOS Conf Singapore, Singapore 🦁🇸🇬, october 2017

How do we deal with uncertainty in our programming lives, and how can the thread sanitizer help us in managing that uncertainty?

Thirteen Ways of Looking at a View Controller
AltConf, San Jose ☀️🇺🇸, june 2017

View controllers: we know them, love them, despise them, and overload them. Let’s look at them a little closer.

How do we deal with Swift code that executes in a (mostly) straight line when there are so many side tangents and threads to wait around for?

Lessons learned from learning reactive programming.

Clarity, Cohesion, Coupling, Complexity
Swift Summit, San Francisco 🌉🇺🇸, november 2016

How can reading more code help us write better code?

Scouting Swift 3
CocoaConf, San Jose 🤓🇺🇸, october 2016

New and exciting features in Swift 3

Cross-Platform Swift
Indie DevStock, Nashville 🎸🇺🇸, september 2016

Sharing code from iOS to Linux isn’t too painful after all. Also, where does the word “geometry” come from?

Intermediate Swift
iOSDevUK, Aberystwyth 🐉🇬🇧, september 2016

Hands-on workshop iOSDevUK, September 5–8, 2016. I covered a bunch of Swift 3 features and wrote up one of them as a blog post (link below).

Programming in a Swift Style
RWDevCon, Alexandria 🦅🇺🇸, march 2016

What are some things in Objective-C that need more of a re-think when moving to Swift?

Swift Style
@Swift, Beijing 🇨🇳, january 2016

When we write Swift, how can we write it not just to tell the computer what to do, but to express an idea?

What I Learned From 55 Swift Standard Library Protocols
Swift Summit, San Francisco 🌫🇺🇸, october 2015

How does the way the Swift standard library uses protocols give us hints on how we should do it?

Switching Your Brain to Swift
360iDev, Denver ⛰🇺🇸, august 2015

What’s new, what’s the same, and what’s completely different when programming for the same platform in a new language?