I build small things to fix problems I actually have.
A bill nobody wanted to split. A party nobody could RSVP to without an app. A shopping list written in the wrong order, in two languages. Each one started as something small that annoyed me, and stayed small enough for one person to finish.
None of them cost me anything to run when nobody is using them. That was a rule I set early on, and it turned out to be the part that makes them fun to build. It also means I have never had to switch one off to save eight euros a month.
Here is what each one does, and where it came from.
Things you can use
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Knip
knip.appTikkie and Splitwise move the money, but neither works out who owes what. Photograph the receipt, everyone taps what they had, done.
Read the story → -
Areh
areh.appA calendar invite only works if everyone shares a calendar. This is one page, one link, and one tap to say in or out. No account, no app.
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Hamta
hamta.nlAdd to your shopping list in English, in Dutch, or as a link to a recipe. It comes back as one aisle-ordered route through the shop.
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Unkoad
unkoad.comA paper code-breaking game from the back of a car, then an Android game, now on the web. Race someone at the same secret code, or take the daily challenge.
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Things I built for myself
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Screenstamp
github.com/maclirSave a desk's display layout once, then stamp it onto whatever screens you plug into next. Ends the five minutes of dragging blue rectangles.
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Eqo
privateI started travelling alone in 2020 and wanted to keep more of it. A journal that asks a second question, and connects today to an entry from years ago.
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Zynk
privateEveryone who trades is a vibe trader. This one reads the news every few minutes and moves a real portfolio without the emotions. Some weeks up, some weeks down.
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Who is doing this
I started coding at twelve, mainly so nobody could tell me to get off the computer. From there: web design back when jQuery was the library, a degree in Sweden during the first years of Android, and a run of startups. Since 2020 I have been an engineering manager at Spotify. The projects above are what I build in hack weeks and the odd evening.