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. What is structured concurrency?

   Structured concurrency is a new term for most Swift developers. This is an attempt to decipher its meaning. More >

   July 8, 2021

2. How Swift runs an async executable

   Who creates the task for your async main method to run in, and how. More >

   June 30, 2021

3. Swift needs a better language reference

   Reference documentation should be searchable, linkable, and ideally integrated into IDEs. A badly structured book isn’t good enough. More >

   June 3, 2021

4. How OrderedSet works

   I did not understand how OrderedSet in the new Swift Collections library uses a hash table of array indices for fast lookups, so I read the source code to find out. More >

   April 30, 2021

5. My favorite books 2020

   Mostly non-fiction books this year. Some in English, some in German. More >

   December 31, 2020