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. My favorite books 2018

   Listed in the order I read them. The list includes some fiction, some non-fiction. Few tech books. Some are in English, some in German. Some on serious topics, and some light entertainment. One children’s book and one photo book. More >

   December 27, 2018

2. Small Fry

   Lisa Brennan-Jobs’s memoir Small Fry is one of the best books I’ve read this year. More >

   November 30, 2018

3. Splitting a Swift Sequence into head and tail

   Writing a generic function for destructuring a Sequence into a head and a tail that preserves the sequence’s subsequence type and works for single-pass sequences is a little tricky. More >

   November 29, 2018

4. Roy Fielding’s REST dissertation

   I recently read Roy Fielding’s 2000 PhD thesis in which he introduced REST. Here’s what I learned. More >

   October 31, 2018

5. PhotoKit’s data model

   An entity graph of the Core Data data model used by Apple’s Photos framework on iOS. More >

   September 28, 2018