iPhone and Mac
- Swift
- SwiftUI
- AppKit
- Menu bar apps
- Bluetooth LE
Hi, I’m Johannes. Developer and HTL student.
Software that does one thing, properly.
I’m from south-east Styria and study at HTL Kaindorf. Most of my time goes into ÖffiGo and my other tools, small ones for things I run into while working.
- Working on
- ÖffiGo, TestFlight beta
- Last push
- BriskEdit
- Local time
My main project
ÖffiGo
The transit app for all of Austria.
ÖffiGo is my largest project: the transit app for all of Austria. It shows departures, plans journeys by bus, train and tram and follows your trip on iPhone and Apple Watch. Every time shows whether it comes from the operator or the timetable.
closed TestFlight beta, not released yet
What's new in the beta ↗Explore punctuality ↗System status ↗
For school
Kontobuch
Accounting, like a notebook.
A digital accounting notebook. Write journal entries, calculate discounts and VAT, and get help with the next step.
Built for HAK and HTL students. Start in your browser or install the app. Your notebooks stay with you.
Free · No sign-up · macOS, Windows, Linux & web
New
typesilk
A typing test where the words glide.
My newest project: a typing test for the browser. The text runs on one continuous spring, so it gets smoother the faster you type. Nine modes, four languages and a coach for your weak keys.
Free · No account needed · In the browser, with a physical keyboard
More of my work
PortPirateLocal dev servers on your Mac, run by you and your coding agents without collisions.Swift · SwiftUI · MCP
BriskEditA native Mac editor with a terminal and Markdown preview.Swift · SwiftUI · AppKit
dirhopJump to any folder from the terminal in a few keystrokes.Rust · ratatui · nucleo
CSwapRun several Claude Code accounts side by side, and move a session to another account with /swap.Swift · macOS · Menu Bar · CLI
DysonBarAir quality and controls for Dyson purifiers in the Mac menu bar, over your own Wi-Fi.Swift · SwiftUI · MQTT · macOS
NotchTrayReach menu bar icons hidden behind the notch on older macOS versions.Swift · macOS · Menu Bar
claude-code-todo-fixBrings the task list back to Claude Code on newer models.Shell · PowerShell · Claude Code- agent-presenceDiscord Rich Presence for Claude Code and Codex. One static binary, no bot token.Rust · Discord · CLI
BeamMacA Mac app that installs and starts BeamNG.drive on Apple Silicon.Swift · SwiftUI · Wine · Metal
DriveTechBMW-style driving electronics for BeamNG.drive.Lua · LuaJIT · BeamNG.drive
Smaller tools, experiments and older projects are in the catalogue.
All projectsStack
What I work with, and where you can see it. Every line links to a project that uses it. The whole setup
Web
- TypeScript
- Astro
- Vite
- Vercel
- Cloudflare
CLI and tools
- Rust
- Python
- Node
- Lua
- Local LLMs
Used inagent-presenceip-multitoolPatchPilotDriveTechclaude-code-todo-fix
Shipping
- Code signing
- Notarisation
- Sparkle updates
- GitHub Actions
Used inBriskEditBottleLite
A year on GitHub
Each square is a day of commits, pull requests, reviews and issues; the stronger the square, the more. As of the last build.
Point at a day, or focus the grid and use the arrow keys.
6,209 contributions · on 221 days · longest streak 78 days · busiest day: 164 (25 Oct)
About
The short version.
I live in south-east Styria and study at HTL Kaindorf. Most of what I build starts as a problem I ran into myself: a workflow that takes too many steps, a device that won't cooperate, an app that should exist and doesn't. I work with TypeScript, Swift and Python, but the stack matters less than whether the finished thing actually gets used.
Contact
Get in touch.
Questions about a project, an idea or just something you want to tell me? Write here or send me an email.
Elsewhere