Reletter
Artwork for Captain SwiftUI

Captain SwiftUI

Danny Bolella

The Captain’s Blog on Swift, SwiftUI, and Apple Development

Platform
Substack
PricingFreemiumPublishesWeekly
Issues39Founded2 years agoLast Issue2 months ago
Active

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Artwork for Captain SwiftUI

Latest Issues

Talking Liquid Glass with Apple

If you were developing for Apple platforms a decade ago, you probably remember the WWDC era in San Francisco. The massive scale, the live sessions, the sheer energy of thousands of developers packed into the Moscone Center—it was an incredi...

2 months ago
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12

Objectively Better, Observably Trickier

Let’s be honest: the Observation Framework and @Observable macro isn’t brand new. It has been navigating our waters for a few years now, offering a concurrency-safe upgrade to the older, more mysterious ObservableObject. But while many...

4 months ago
42
1

Emptiness in SwiftUI

Did you know that zero had to be “invented”? For many ancient civilizations, numbers were exclusively for tangible things. There was no need to count nothing. Eventually, scholars recognized that “nothing” isn’t just an absence—it’s a value...

4 months ago
32

Playing with Sheet (on iOS)

There’s been ongoing—yet significant—evolution in how sheets and modals are used. The era of full-screen takeovers and heavy modals has been fading, replaced by lightweight, flexible, and fluid overlays that feel right at home in the new Li...

7 months ago
24
1

The Northern Stars of Liquid Glass

With the release of [your platform here]OS 26, Liquid Glass is officially here. And with it comes a new era under Apple’s new design system. It’s been a fun summer exploring LG alongside the community — especially as each beta changed this,...

8 months ago
18
1

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  • Danny Bolella

    Ahoy there! This is your Captain speaking: My name is Danny Bolella and I’m a Lead iOS Engineer. Come join the crew as we journey through my ideas, thoughts, and discoveries on Swift, SwiftUI, and Apple development! Opinions are my own.

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