76 projects in eight months
From idea to phone
Making software development more productive
How I build with AI agents, what it has come to since March 2026, and an app port that took about an hour from asking to running on my phone.
AI advice you can check
My attempt at helping people who are thinking of changing jobs or career direction, without the AI getting stuck on what they already do.
I got curious about helping people who are thinking of changing jobs or career direction. Especially now, with AI, this is going to become something a lot of people need to do. Just uploading your CV and asking an AI doesn't work well. AIs tend to get stuck on one direction, or on what already "is", because of the way their attention works. So Career Compass was my attempt at undoing that.
It's a private tool, tried on a few people so far, and still changing. The person in these screenshots is made up.
It starts with easy questions about how your days go, answered in your own words. The CV comes last, and only to check facts. Then it says what it thinks about you. Every line is marked "Your words" or "Claude's inference", and each belief says what would prove it wrong.
After that it guesses at jobs, about half it thinks you'll like and half it thinks you won't, and you say right or wrong. It learns from where it was wrong and has another go. The aim is the pleasant surprise: the adjacent job you hadn't thought of. It keeps score on itself round by round, so you can see whether the guesses are getting better. Nothing gets ruled out because of one thing you don't like, unless you decide to rule it out after seeing what that would hide.
Easy questions about how your days go, answered in your own words.
What Claude thinks about you, each line marked as your words or its inference.
Rounds of guesses. You tap right or wrong, and it learns from where it was wrong.
Directions to aim for, and separately, real ads open today.
A brief to print, in English or German.
My first version went through a big European catalogue of jobs, and you ended up with 741 of them to say yes or no to. I changed that to questions and a short list, and then to the rounds of guesses it uses now.
At the end you get 5 to 7 directions to aim for, a separate list of real job ads that are open today, and a brief you can print in English or German. There's a web app and an Android app. The improving score in the screenshots is from a scripted test run, not a study.
I think AI advice is more use when you can check it. Here every line says whether it came from you or from Claude, and you can tell it when it's wrong.
If you'd like to talk about this, get in touch.
76 projects in eight months
Making software development more productive
How I build with AI agents, what it has come to since March 2026, and an app port that took about an hour from asking to running on my phone.
13 Android apps moved in ten days
From Flutter to Kotlin
Why I used Flutter, what I noticed when the first Kotlin apps were on my phone, and moving 13 Android apps across.
64 databases backed up
Guards that run without me
The checks that run on timers without me: scanning, patching, the test gate, backups and certificates. And what happened when a certificate authority was compromised.
6 places I look closely
When you no longer read every line
What I look at when I don't read every line: the borders of the code, its shape, and the test count.
1 text box a day
A product designed for people
A demo journal for people rebuilding their working life with a coach. One text box a day, and a report that only uses what the person wrote.
4 prototypes before the spec
For leasehold plots in Addis Ababa
Four prototypes on the first day, then the spec, the valuation engine and a web app in three languages on the second.