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Achievement: Galaxy BrainAchievement: Pull Sharkx3Achievement: QuickdrawAchievement: YOLOAchievement: Pair Extraordinaire

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jx-grxf/README.md

Johannes Grof

I build native macOS and iOS apps, developer tools, and the backends behind them.

Austria · HTBLA Kaindorf an der Sulm · Swift · TypeScript · Rust

Website X LinkedIn Email

Currently building — ÖffiGo

A truly native public transport app for all of Austria. Real-time departures, journey planning, live vehicle positions and disruptions — on iOS (SwiftUI), Android (Jetpack Compose) and Apple Watch, backed by my own TypeScript BFF.

Primary data source: Verkehrsauskunft Österreich (VAO) - the national mobility data platform behind Austria's official transit apps.

oeffigo.app · closed TestFlight beta · Android in development

SwiftUI · Jetpack Compose · TypeScript · Supabase · Redis · Cloudflare · Railway · Live Activities · Apple Intelligence

What I build

graph TD
    ME(("Johannes Grof"))

    ME --> MAC["🖥️ Native macOS &amp; iOS<br/>Swift · SwiftUI · AppKit"]
    ME --> AGT["🤖 Agent &amp; Dev Tooling<br/>Rust · TypeScript"]
    ME --> NET["🌐 Backend, Networking &amp; CLI<br/>TypeScript · Python · Rust"]

    MAC --> OG["ÖffiGo"]
    MAC --> BE["BriskEdit"]
    MAC --> PO["poise"]
    MAC --> NT["NotchTray"]
    MAC --> BL["BottleLite"]
    MAC --> MP["MacPhone"]
    MAC --> CC["CCrab"]

    AGT --> PP["PatchPilot"]
    AGT --> AP["agent-presence"]
    AGT --> CSB["claude-swap-bar"]
    AGT --> HK["HealthKit-MCP"]

    NET --> TO["Tools"]
    NET --> IP["ip-multitool"]
    NET --> CR["Caruso-Reborn"]
    NET --> STD["scooter-tuning-db"]
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macOS apps

Project Tech What it does
✏️ BriskEdit Swift SwiftUI Native developer text editor. SwiftUI + AppKit, TextKit 2, Swift 6 — built against the Electron VS Code experience.
🧍 poise Swift CoreMotion Turns your AirPods into a posture coach using their motion sensors. No camera, no cloud, fully on-device.
📲 NotchTray Swift AppKit Finds menu bar items hidden behind the MacBook notch and surfaces them in a Dynamic Island-style panel.
🍾 BottleLite Swift Wine Lightweight open-source macOS runner for Windows apps.
🔀 claude-swap-bar Swift Sparkle Switch between Claude Code accounts from the menu bar, with live per-window usage meters.
🦀 CCrab Swift AppKit Desktop companion for Claude Code. Live session state on a floating panel and usage limits in the menu bar, at 0.0% idle CPU — Core Animation owns the timeline, so there is no draw loop.
📱 MacPhone Swift CoreBluetooth macOS device lab that bridges a real BLE device into an Android emulator's virtual controller.

Developer & agent tooling

Project Tech What it does
🦀 agent-presence Rust macOS Windows Linux Discord Rich Presence for Claude Code and Codex. One ~1.5 MB static binary, no bot token, privacy-safe defaults.
🛠️ PatchPilot TypeScript Ollama Local-first terminal coding agent. Inspect, plan and apply changes with explicit permissions for every file write and shell command.
❤️ HealthKit-MCP TypeScript Supabase Read-only MCP bridge for Apple Health — sleep, workouts and training load for any MCP-capable agent.
🧰 ip-multitool Python Terminal toolkit for IP intelligence, DNS/RDAP, HTTP checks, subnet math and authorized network diagnostics.

Web, hardware & open data

Project Tech What it does
🌐 johannesgrof.me Astro Vercel My portfolio and project site. Bilingual (EN/DE), static, fast.
🧾 Tools TypeScript Vite Merge, split, rotate and convert PDFs and images entirely in the browser — no upload, no account. Live at tools.johannesgrof.me.
📻 Caruso-Reborn TypeScript Electron Brings internet radio and modern sources back to first-generation T+A Caruso hi-fi systems over UPnP.
🛴 scooter-tuning-db Markdown BLE Open, community-reverse-engineered BLE register and tuning map database for e-scooters.

Coming soon

Project Tech Status
🧰 PortPirate Swift macOS menu bar control center for local dev ports — maps every listener to its process and repo.
⌨️ TypeBot TypeScript Playwright Stay tuned 👀
📦 Archive — unmaintained projects & forks

[!NOTE] These repositories are no longer maintained. They stay public for reference, but expect no fixes, releases, or support.

Project Tech Description
🔊 SlamX Swift Want to make your MacBook scream? Fan and thermal control experiment.
📄 DocxToPDF TypeScript Batch convert DOCX to PDF on macOS via Word and AppleScript.
🎧 Hermes-Discord-Voice TypeScript Discord voice bridge for Hermes Agent.
📡 arduino-distance-alarm Arduino Distance measurement with a local web dashboard.
📚 EBookToPDF (fork) Python Ebook to PDF conversion utility.

Stack

Languages

Languages

Platforms & frameworks

Platforms

SwiftUI Jetpack Compose MCP

Infrastructure & services

Infra

Railway App Store Connect TestFlight Sparkle

Tooling

Tooling

Xcode Tuist Playwright

Stats

Available for freelance work — websites, small tools and automation, IT support. On-site in south-east Styria, remote across Austria.

johannesgrof.me · contact@johannesgrof.me

Pinned Loading

  1. BriskEdit BriskEdit Public

    Native macOS developer text editor. SwiftUI + AppKit, TextKit 2, Swift 6. Built against the Electron VS Code experience.

    Swift 3

  2. BottleLite BottleLite Public

    A lightweight open-source macOS runner for Windows apps.

    Swift

  3. agent-presence agent-presence Public

    Discord Rich Presence for Claude Code and Codex — one static binary, no bot token, privacy-safe defaults

    Rust

  4. poise poise Public

    Turn your AirPods into a posture coach — native macOS menu bar app

    Swift

  5. ip-multitool ip-multitool Public

    Focused terminal toolkit for IP intelligence, DNS, RDAP, HTTP checks, subnet math, and authorized network diagnostics.

    Python