Dev blog post potpourri by senior software engineer Marco Eidinger

WWDC26 kicked off on June 8, 2026.

WWDC25 kicked off on June 9, 2025.

WWDC25 is almost here, and I couldn’t be more excited!

In this blog post, I’ll share an observation and advice regarding the caching behavior of network responses by Apple’s APIs.

WWDC24 kicked off on June 10, 2024.

This blog post will explain alternatives for programmatically determining a presented sheet's detent in SwiftUI.

In this blog post, I'll recap how to protect a keychain item with biometric authentication.

In this blog post, I'll explain when and where you can use Swift's new package access modifier.

In this blog post, I'll explain how you can programmatically verify a binary framework (.xcframework file).

In this blog post, I'll explain the "Require Only App-Extension-Safe API" (APPLICATION_EXTENSION_API_ONLY) build setting in Swift, when and why to use it, and its consequences when generating API documentation.

Happy New Year!

In this blog post, I'll explain how you, a Swift developer, can leverage Optic ID for authentication and how to test OpticID in the Vision Pro simulator.

In this blog post, I'll share a shell script that helps you to identify if your code base might use a required reason API.

GitHub released significant updates for Swift developers this summer.

How difficult can it be to parse an HTTP link to identify and extract individual components like its subdomain or top-level domain?

Swift Package Manager (SPM) allows you to Share source code (open-source) Distribute binaries to protect your intellectual property (closed source) Unfortunately, SPM does not help you to create a precompiled binary version of your package products.

Before iOS 16.4 developers were able to attach the Web Inspector to inspect content running in WKWebView and JSContext for a developer-provisioned app built directly from Xcode for local development.

Third-party SDKs may use Swift packages to vent their binary frameworks from a server that requires authentication.

In this blog post, I describe my experience using Swift OpenAPI Generator to generate a fully functional client API.

WWDC23 kicked-off on June 5, 2023.