I build whatever
I think up.
I'm Leo. I'm based in Switzerland, and I build across the full range of what technology allows: PCB design, homelab infrastructure, SaaS products, Mac software, and security tooling. If the idea is interesting enough, it gets built.
Role
Software Engineering Apprentice
Based
Switzerland
Availability
Locked-in
What I build
Five domains,
one person.
Hardware
01PCB design and RF tooling. UnyxRF is an open-source module board for the M5StickC Plus 2, with RF and storage support. Bruce is ESP32 firmware built for radio security research.
Homelab
02Self-hosted services running on physical hardware. Discord bots, media servers, automation pipelines — built from scratch and running continuously.
Web & SaaS
03Full-stack web applications and SaaS products. DailyBite is a food tracking app built end-to-end. Scrapers, APIs, and tools for automating real workflows.
Mac Apps
04BlindSpot: select any text, press ⌘⇧Space, and an AI answer streams back in a floating overlay that no screenshot tool or screen recording can capture. Built in Swift, available on Homebrew.
Security
05Educational security tooling and research. HackStarter Kit covers WiFi deauth, BLE manipulation, and RF analysis — with notes on mistakes to avoid.
Personal projects
Things I built
for myself.
Writing
Things I write
when I figure stuff out.
Contact
Got something
to say?
Project idea, question, or just a hello. Fold it up and send it over.