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
Blog
Pelgrims Path part 01
Hiked part 1/27 of the Pelgrims Path, 17.3 kilometres from Amsterdam to Amsterdamse Bos.
Hiking
Dune: Part Two (Original Motion Picture Soundtrack) by Hans Zimmer
Hans Zimmer's 2024 release, a cinematic score built to carry a story. I came to it well after release and have returned to it since.
Music
Monthly update #0429 • January 2026
Monthly update 429 • January 2026 • 2026-01-01 - 2026-01-31
Monthly Updates
Utrecht Path part 10
Hiked 18.0 kilometres from Hollandsche Rading to Maarssen.
Hiking
Announcing the Windows Workgroup
Swift starts a Windows workgroup to maintain support, improve tools and packages, and guide future work on the platform.
Development
Utrecht Path part 09
Hiked 13.5 kilometres from Baarn to Hollandsche Rading.
Hiking
The Calm Collection by Jan Mulder
Jan Mulder's 2025 release, a set of melodic instrumental pieces. It came to me long after release and earned its place.
Music
Improving the usability of C libraries in Swift
Swift calls C libraries easily, but they feel unsafe and old. Use module maps and API notes to make them safe, modern, and Swifty without changing the C code.
Development
Toxic Empathy by Allie Beth Stuckey
Allie Beth Stuckey's 'Toxic Empathy' argues that progressives manipulate Christian compassion through empathy on issues like abortion, gender, and immigration, calling for truth-based responses.
Books
Utrecht Path part 08
Hiked 17.0 kilometres from Amersfoort to Baarn.
Hiking
End-to-End The Worlds Longest Train Journey by Scott Manson
Scott Manson's book 'End-to-End' recounts his 18,295 kilometres, 35-day train journey from Portugal to Vietnam in 2019. He describes people met, landscapes, food, challenges, and how Covid later made the route impossible.
Books
Number Station 44
Number Station 44. At the end of the dial, the numbers never lie.
Projects
On Democracies and Death Cults by Douglas Murray
Douglas Murray wrote On Democracies and Death Cults. He looks at the fight between Israel and Hamas. Murray calls it a clash between a free country and a group that loves death.
Books
Monthly update #0428 • December 2025
Monthly update 428 • December 2025 • 2025-12-01 - 2025-12-31
Monthly Updates
I love snow
Today it snowed again, and it stayed on the ground. This does not happen often in the Netherlands any more. I love snow. I always have, and I always will.
Journal
Goals of 2026
3 goals this year, lose weight, start dating, start a business
Journal
Reflecting on the year 2025
Reflection on the year 2025, checking progress of the goals, and some numbers.
Journal
Fucking Approachable Swift Concurrency
Swift Concurrency can feel like a lot of concepts: async/await, Task, actors, MainActor, Sendable, isolation domains. But there's really just one idea at the center of it all: isolation is inherited by default.
Development
The Holy Bible
The Holy Bible is the word of God given to men over many centuries. Christians turn to it for guidance in life, comfort in pain, strength in trials, and hope for eternity. It shows God's plan from the beginning to the end.
Books
The Holy Bible - Revelation
The Book of Revelation is the last book of the Bible, written by the apostle John around 95 AD while exiled on Patmos. God gave him visions of the future, judgement on evil, and the final victory of Jesus Christ.
Christianity
Merry Christmas
Merry Christmas to all. Let us recall what this day truly means. Christmas marks the birth of our Lord and Saviour Jesus Christ.
Christianity
From a Man's Perspective by Dax
Dax's 2024 release, direct and personal writing over steady beats. I found it some years after it appeared and was glad I did.
Music
Top Four
A /top4 page is a personal webpage where you can share your definitive ranked list of your top 3 favourites and an honourable mention.
Projects
The Time Machine by H.G. Wells
H.G. Wells’s The Time Machine tells of an inventor who builds a device to travel through time. He goes far into the future, to the year 802701 AD, where he finds humans split into two kinds: the gentle Eloi who live above ground and the brutal Morlocks who dwell below.
Books