Work & experiments
Projects
Apps, side hustle, and stories — side by side, without marketing gloss.
Personal apps
App overview: AI Kalorien, TeslaViewer, BillBuddy, LMMHoroskop, NovaPowerLogger, MarsPatrol — honest, no fake store links.
Read more →iOS ShortcutAI Kalorien
Free Shortcut: photo, text, barcode, or label → calories & macros in Apple Health. No subscription, no account of mine.
Read more →macOSTeslaViewer
Lean macOS app: six Tesla dashcam/Sentry feeds in sync on a 3×2 grid. Public repo — not notarized, not on the App Store.
Read more →iOSBillBuddy
iOS app for splitting bills. Private repo — no source link here, no invented store listing.
Read more →iOSLMMHoroskop
iOS horoscope using Apple’s on-device Foundation Model. Private repo — support separately.
Read more →macOSNovaPowerLogger
macOS menu-bar app for solar/inverter data. Private repo — no source link here.
Read more →iOSMarsPatrol
iOS SpriteKit arcade. Private repo — no source link, no invented store listing.
Read more →AI / agent harnessAI Harness Context
Experiments with context, content, and multi-agent work — F.R.I.D.A.Y. → jarvis → edith, plus an open protocol and blueprints.
Read more →Book / memoirDer Tschechen Jahn
Memoir and true crime from 1980s Berlin. Trauma-aware, restrained — not a spectacle.
Read more →Social / content@Jesaja on X
Public profile: agents in production, anti-hype, honest about what breaks.
Read more →Web & ITPractice IT & dental websites
Websites and IT for dental practices — calm, trustworthy; public drafts linked.
Read more →