The Great Divorce by C.S. Lewis
C.S. Lewis's 'The Great Divorce' is a short story of souls who take a bus from Hell to Heaven. They must choose to let go of sin or return to Hell. Lewis shows why some prefer Hell to Heaven.
Books
Blog
Veluwe Wander Trail part 03
Hiked part 3/25 of the Veluwe Wander Trail, 16.8 kilometres from Planken Wambuis to Lunteren.
Hiking
Monthly update #0431 • March 2026
Monthly update 431 • March 2026 • 2026-03-01 - 2026-03-31
Monthly Updates
Mere Christianity by C.S. Lewis
C.S. Lewis's 'Mere Christianity' explains the basic beliefs that all Christians share. It began as radio talks in the Second World War and shows why faith makes sense through reason and real life.
Books
Veluwe Wander Trail part 02
Hiked part 2/25 of the Veluwe Wander Trail, 20.5 kilometres from Wolfheze to Planken Wambuis.
Hiking
Happy Easter
Happy Easter to all. Easter marks the resurrection of our Lord and Saviour Jesus Christ.
Christianity
Veluwe Wander Trail part 01
Hiked part 1/25 of the Veluwe Wander Trail, 19.1 kilometres from Arnhem to Wolfheze.
Hiking
Good Friday
Good Friday to all. Let us remember what this day truly means. Jesus gave his life on the cross for our sins.
Christianity
Swift 6.3 Released
Swift 6.3 makes these benefits more accessible across the stack. This release expands Swift into new domains and improves developer ergonomics across the board...
Development
Going Postal by Terry Pratchett
Terry Pratchett's 'Going Postal' follows a charming conman named Moist von Lipwig. He gets a second chance to revive the broken post office in Ankh-Morpork. A funny and sharp story about words, power, and beating bureaucracy.
Books
Pelgrims Path part 02
Hiked part 2/27 of the Pelgrims Path, 12.9 kilometres from Amsterdamse Bos to De Kwakel.
Hiking
Capitalism and Freedom by Milton Friedman
Milton Friedman's 'Capitalism and Freedom' shows that economic freedom is vital for political freedom. He argues free markets and small government lead to greater liberty and prosperity.
Books
Marskramer Path part 02
Hiked part 2/20 of the Marskramer Path, 17.3 kilometres from Oldenzaal to Borne.
Hiking
Swift at scale: building the TelemetryDeck analytics service
The service handles data from millions of users each month. It helps thousands of app makers improve their products. The backend uses Swift. They chose Swift and the Vapor framework for the server.
Development
Never Split the Difference by Chris Voss
Chris Voss's 'Never Split the Difference' reveals FBI hostage negotiation tactics for everyday use. It teaches why you should never compromise in the middle and how to use empathy to achieve stronger results.
Books
Monthly update #0430 • February 2026
Monthly update 430 • February 2026 • 2026-02-01 - 2026-02-28
Monthly Updates
E2EE Backend part 3: Passkeys with the PRF Extension
Third in the series on privacy-first backends: use Passkeys and the PRF extension to derive encryption keys on the client device. The server never sees your keys.
Development
Serious Cryptography by Jean-Philippe Aumasson
Jean-Philippe Aumasson's 'Serious Cryptography' gives a practical guide to modern encryption. It explains key ideas like block ciphers, hash functions, and public-key methods with real-world focus and updates in the 2024 second edition.
Books
E2EE Backend part 2: Private Information Retrieval
Second in a series on privacy-first backends: demo shows how to do encrypted keyword lookups with KeywordPIR using Apple's frameworks. Server learns nothing about the query.
Development
Announcing Swift System Metrics 1.0
Apple released Swift System Metrics 1.0. It is a Swift package that collects system metrics from a process. It works on Linux and macOS with the same API.
Development
You're Not Enough (and That's Ok) by Allie Beth Stuckey
Allie Beth Stuckey's 'You're Not Enough (And That's Okay)' says self-love culture is toxic. She argues we are not enough alone, but God is, and we find freedom in Christ instead of ourselves.
Books
Nuremberg
Nuremberg (2025), directed by James Vanderbilt, tells the story of the Nuremberg trials through the eyes of a US Army psychiatrist. Rami Malek plays Douglas Kelley, who must assess the minds of top Nazi leaders to see if they can stand trial.
Movies
Utrecht Path part 11
Hiked 11.3 kilometres from Maarssen to Utrecht.
Hiking
Scattered Minds by Gabor Maté
Gabor Maté's 'Scattered Minds' shows that ADHD is not genetic but a reversible developmental delay from early stress and attachment problems, with real hope for healing.
Books
E2EE Backend part 1: Homomorphic Encryption
First in a series on privacy-first backends: demo shows how to sum encrypted numbers using Apple's HomomorphicEncryption (BFV) without decrypting data. Server sees only ciphertexts.
Development