Software developer from Oyten. I build small software for problems I have myself, and write down why it turned out the way it did.
Package insert
Nothing drawn yet.
Turn the crank and a capsule drops out below. Or grab one straight from the dome.
Package insert
2025 – present
Manga reader for tablet and phone
My library’s built-in reader never remembered that manga run right to left. Mine remembers it per series, and on the phone a tap jumps from panel to panel, found by an AI model.
16,366 pages for 50 cents
Kotlin, Compose, TypeScript, SQLite, React, PWA, PythonLive · sign-in required
To the project yomikataPackage insert
2026
Rate restaurants, plan the evenings
In our group everyone rates blind, and the reveal is for all of us at once. The restaurants sit on a map, with photos and marks for every visit, and a planner is how we settle the next evening.
3 people, 1 evening a month
TypeScript, Fastify, SQLite, MapLibre, ProtomapsLive · sign-in required
To the project tafelrundePackage insert
2026
An NFC brick that locks the phone
Tap the phone on a brick from the 3D printer and the apps I picked are blocked. There is no emergency exit: to end it I have to get up and tap again at the desk.
1 tap to lock
Kotlin, Compose, Room, OpenSCADAndroid · hardware
To the project focusbrickPackage insert
2026
Search leaflets, alerts to your phone
The six-pack of oat drink for €10 is cheaper per litre than the single litre at €1.79, and the radar says so right next to the price. It collects the leaflets for my area and pings my phone as soon as something I’m waiting for turns up.
1 run a night
Python, FastAPI, SQLite, PWALive · sign-in required
To the project angebots-radarPackage insert
2022 – present
Images from FLUX and GPT
Two AI providers, two archives, and an image I had made on one device was nowhere to be found on the other. My own interface in front of both keeps every image with its prompt and its cost.
since 2022
TypeScript, Express, Vitest, DockerLive · sign-in required
To the project ai-image-generatorPackage insert
2024 – present
Advent calendars to give away
The grandparents open a door in the morning and see a photo, without signing in anywhere. The Advent calendar is put together beforehand, day by day, from your own photos, and paid for only once it is finished.
24 doors
TypeScript, Astro, React, Drizzle, Stripe, AnsibleBeing rebuilt
To the project Einmal noch schlafenPackage insert
2026
Side quests for real life
The next train to leave: get on, ride to the end of the line and see where you come out. The app pins tasks like that to a board, and instead of points the fog lifts on a hand-drawn island.
1 island from 1 number
Kotlin, Compose, libGDXIn progress
To the project StöberbyPackage insert
2022 – present
Six designs, the same content
The same site as a tree slice or as a rally of cardboard signs, and not a line of JavaScript for it. The “Design” button at the bottom switches between them.
no script
Astro, TypeScript, nginxLive
To the project tim-kruse.comSet up by Tim Kruse, Oyten
In my day job I have been building larger systems for clients since 2011, mostly with Java and Spring. → Work
Eight capsules in the machine, one project in each.
From the log
builtStöberby
Stöberby now has its own page: an island in the fog that clears as you scroll. You can sign up there for the app’s test round. Join the test round
builttim-kruse.com
The relaunch is live: six designs drawn from the same content, switched with the button in the bottom right, and not a single script in the browser.
learntStöberby
With the app still unbuilt, a year ran through on fast-forward, and after six months the map stood still. Now every island is a chapter, and a boat takes you on to the next one.
Same content, different look. You start on its home page, and every link stays in the chosen design.
