Hi, I’m Ole. I’m a developer from Berlin and co-author of Advanced Swift. Here, I mainly write about Swift and app development on Apple platforms. More about me.

1. Where is end-to-end encryption for iCloud?

   Despite Apple’s bold privacy claims, a large portion of your data stored in iCloud is still not end-to-end encrypted. More >

   December 10, 2020

2. as, as?, and as!

   The as and as? operators in Swift are more different than their similar names suggest. More >

   June 29, 2020

3. Sanitizing GPX files for public sharing

   How to use XmlStarlet to strip out unwanted or privacy-sensitive information from a GPX file before sharing it on the web. More >

   June 22, 2020

4. Linking to text fragments in web pages

   Text fragments are a way for web links to specify a word or phrase a browser should highlight on the destination page. More >

   June 21, 2020

5. Testing UIKit accessibility in unit tests

   How to write a unit test that uses UIKit’s accessibility properties. More >

   April 30, 2020