Product 6 min read
An app can be an income without being a business
A clip about apps that print money — and the stop-vaping example in it — made me see the gap between an income and a business, and rethink where my hours go.
Hej — I'm Jens.
I build apps, use them every day, and write about what breaks.
Platform engineer by trade, indie developer by obsession. This is where I keep field notes on shipping iOS and web products — the bugs I only find by being my own user, the features I talk myself out of, and the difference between code that's done and a product that's good.
Latest writing
All posts → Building 8 min read
I'm my own worst user
I build apps and platform tools because nothing else fits how I think — and the hard part was never the code. On necessity, restraint, and judging what to build by use, not by how fun it is to make.
Engineering 11 min read
Why I rebuilt my app from React Native and Firebase to native and backendless
I built a workout app the way a backend engineer would — React Native, Firebase, anonymous auth, Cloud Functions. Then I deleted all of it. The migration to native and backendless, and what it taught me.
Building 7 min read
The progression bug I'd never have found in a unit test
A bug in my own app where the program quietly stopped delivering its prescribed intensity — found mid-squat, not in CI — and why dogfooding catches what tests cannot.