A few things I have been building lately.

Voxtra

An AI voice assistant for Swiss practices. It answers calls 24/7, talks in various languages, such as German, French, Italian, and English, and manages appointments directly in the booking systems that practices already use.

∂pay

I built a unique-on-the-market tap to pay (NFC payments) app that works even while your phone is offline. Crypto payments as convenient as card payments. And still fully cryptographically protected, end to end. Of course with QR payments work as well, very similar to how TWINT works if you’ve seen that in Switzerland. ∂pay is non-custodial and nearly free (we charge no fees for using it, you only pay the tiny network fees).

Argus

A GitHub Action that runs AI code review on pull requests through the Cursor agent (claude code or opencode can be easily added) and posts the verdict as a single comment on the PR: approve or request changes. Open source, Apache-2.0.

Decent Cloud

A decentralized cloud marketplace where businesses rent servers from identifiable, legally responsible node providers. Reputation scores, escrow, and transparent pricing stand in against the usual race to the bottom on similar platforms, and confidential computing VMs plus GPU rental cover the sensitive and the compute-hungry cases.