What I build
Products I build and run, open-source contributions, and research from my time in academia. Most of it is public: follow the links.
Products and client work
Feezio
Practice-management app in daily use at a physiotherapy practice (2 therapists, about 100 patients): scheduling calendar and assessment tracking. SvelteKit, TypeScript, MySQL.
Chapter
A real-time chat platform with a layered safety pipeline (hash matching against Project Arachnid, AI triage) and a client that syncs offline-first. Next.js, TypeScript, socket.io.
→ chapter.liwhat2do.ch
Cultural events in French-speaking Switzerland. A pipeline scrapes and normalises about 200 events, searchable on a map built on OpenStreetMap data. Next.js.
→ what2do.chTheca
Self-hosted cloud storage, AGPL-3.0. Rust server (axum, PostgreSQL) with a documented REST API, WebDAV, and FastCDC chunking onto S3-compatible storage; the client engine is Rust compiled to WASM for the SvelteKit app.
→ github.com/theca-cloudA local SME's WordPress site
Page load cut from 3 s to 0.5 s, and an ongoing DDoS attack stopped by moving the site behind Cloudflare's proxy.
Open source
mh3-rs
The online protocol of Monster Hunter Tri, reimplemented at parity with the Python reference and checked by replaying recorded sessions. NAT negotiation with a relay fallback for consoles behind symmetric NAT. Player profiles are validated, so that a crafted profile can't crash other players' consoles.
→ github.com/mh3-rs/serverkaeo
Keep an eye on files and folders, and run a command when one changes. Rust CLI.
→ github.com/MrDaves24/kaeopam-web
Use a website as a PAM module. TypeScript.
→ github.com/MrDaves24/pam-web
Research and talks
E-Laun: OTAR resistant to evil launchers
ESA 3S 2025, IEEE. Joint first author. Asymmetric over-the-air rekeying for satellite links, secure against a malicious launch provider.
→ arodes.hes-so.ch/record/16737Hybrid Modular Hardware-Software Solution for Securing Ground-Satellites Communication
ESA 3S 2025, IEEE. Co-author.
→ arodes.hes-so.ch/record/17800Master's thesis, CSEM
Protecting a SHA-3 hardware accelerator against electromagnetic fault injection. Details under NDA.
Post-quantum threshold signatures, HEIG-VD
Modular arithmetic in Rust that brought signature assembly from minutes down to tens of seconds.
Survey: Attacks on Fully Homomorphic Cryptography
MSc in-depth project, 2025. How key-recovery attacks on FHE apply to real use cases, and where the proposed countermeasures fall short.
→ PDFBachelor's thesis, HEIG-VD
Homomorphic encryption for genome-wide association studies.
→ tb.heig-vd.ch/8057Talk at GOHack26, 30 Oct 2026
Fully homomorphic encryption: usage and limitations. Rust benchmarks with TFHE-rs on a smart-meter workload.
Codexa Perrenoud
