I build software and hardware end to end: native Apple apps, Python and Rust services, and ESP32 firmware with its own PCB.
| Leeway | Native iOS chartplotter and passage planner with offline sea charts, land-avoiding and weather routing, AIS, anchor watch and NMEA instruments. SwiftUI, MapLibre, a Rust data server, charts built from open bathymetry. |
| Venvy | Self-hosted hosting panel for Python and Rust apps: process supervisor, browser terminal, live logs, backups and Cloudflare Tunnel publishing. FastAPI, SQLite, PWA, with an end-to-end test suite and a rollback-safe installer. |
| Passable | macOS app that builds DJ-style transitions stem by stem. HTDemucs on Core ML, neural beat tracking, automatic set ordering and an editable automation timeline. Swift, SwiftUI, Accelerate. |
| EAR Router | Offline-first iOS route planner used by Meals on Wheels drivers in Vienna. SwiftUI, SwiftData, MapKit, CarPlay and Siri, no third-party dependencies. |
| dji-fcc-esp32 | ESP32-S3 firmware plus a complete KiCad design for a pocket dongle that replaces a phone app. ESP-IDF, USB host, custom PCB. |

