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Build > Fail > Build Again
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Achievement: YOLOAchievement: QuickdrawAchievement: Pull Sharkx2Achievement: Pair Extraordinaire

Achievements

Achievement: YOLOAchievement: QuickdrawAchievement: Pull Sharkx2Achievement: Pair Extraordinaire

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onekapisch/README.md
onekapisch — privacy-first software, built to be owned not rented

Privacy-first software, built to be owned — not rented.

local-first · no telemetry · no ads · nothing sold, ever

Website X Threads Bluesky

A one-person studio out of Munich. By day, an Enterprise AI Architect at Siemens Healthineers. By night, I ship small, sharp, private tools — local-first software that respects the people who use it: no accounts, no tracking, no subscription traps.

→ Experience the whole fleet at onekapisch.com — a curated WebGL world where one swarm of ice cubes becomes a planet, shatters mid-air, and reassembles into every app icon. (~230 cubes, one GPU draw call, real spring physics, ice refracting light at its true index of refraction — 1.31.)

❄️ The fleet — built to be owned

Product What it does Platform
SkyLocation Know exactly where you are — even with no signal iOS · Android site
Tokens 4 Breakfast Track AI spend across Claude, GPT, Gemini & more — in your menu bar macOS site
Mac 4 Breakfast All-in-one Mac battery & power — cycle count, temp, live watts, smart alerts macOS site
Chime 4 Breakfast · open source Get pinged when Codex or Claude finish — a sound, plus a screen-edge glow when you step away macOS stars
LUMEL Two-way XDR brightness — push past macOS limits, or dim below the floor macOS site
Minimizer · open source Minimize every window & restore your workspace with one hotkey macOS stars
Easy Write · open source Translate & rewrite text in any app — formal or informal, 100% on-device macOS stars
T-MINUSAI Compare AI models & plans — no hype, no upsell web site
TankAlert Live fuel prices across Germany, by city & station iOS · web site
Life Hacks Germany Verification-first guides to living in Germany web site
Unfold AI · open source Read AI output at your pace — layers, bottom line first Chrome · Firefox stars

🛠 How I build

Local-first by default. No account unless you truly need one. Nothing sold to brokers, no ads, no growth hacks hiding in the work. Buy once, own it — I'd rather ship one honest tool than ten that rent your attention.

⚙️ Stack

Swift / SwiftUI · TypeScript / React · vanilla JS + WebGL (Three.js) · Node · Vercel

🤝 Find me

onekapisch.com · X · Threads · Bluesky · kapisch@icloud.com


⭐ If one of these saved you time, a star on the open-source ones means a lot.

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  1. Tokens4Breakfast-daily Tokens4Breakfast-daily Public

    Track AI token usage, spend, subscriptions & rate-limit pressure across 8 providers (Claude Code, OpenAI, Cursor, Copilot, Gemini, DeepSeek, Mistral, OpenRouter) in your Mac menu bar. Local-first. …

    2

  2. easy-write easy-write Public

    Translate & rewrite text anywhere on your Mac — formal or informal — 100% on-device with Apple Intelligence. No accounts, no API keys, no cloud. A free, open-source DeepL / Google Translate alterna…

    Swift 2 1

  3. chime-4-breakfast chime-4-breakfast Public

    Native macOS menu-bar app for Codex and Claude Desktop. No need to keep watching AI think: move on to another task and C4B pings you with a sound, plus an app-colored screen-edge glow when you have…

    Swift

  4. LUMEL-public LUMEL-public Public

    The two-way Mac brightness app: boost your XDR display brighter than macOS allows, or dim below the minimum. Free + $2.99 Pro, no subscription. A privacy-first Vivid alternative.

  5. Mac-4-Breakfast Mac-4-Breakfast Public

    The all-in-one Mac battery health & power app — menu-bar cycle count, temperature, live watts & Smart Alerts for macOS. A coconutBattery / iStat Menus / AlDente alternative.

  6. skylocation skylocation Public

    Offline GPS for iPhone & Android — your exact location, nearest city & country with no internet, even in airplane mode. A privacy-first alternative to offline Apple/Google Maps. Free + €2.99 Pro.