I build open-source security tools and try to keep as much of my digital life on my own hardware as possible. Off the clock I'm a dad, a gravel rider, and a radio amateur.

I live in Szczecin, Poland with my wife, our two boys, one golden retriever and a gecko.

I love hiking and gravel-bike riding, and I’ll happily disappear on a long bikepacking trip whenever I get the chance.

Licensed radio amateur, callsign HF1T. Everything radio, especially software-defined radio and satellite comms. I run one of the first Polish SatNOGS ground stations.

Open-source advocate and contributor since the late ’90s, privacy evangelist ever since. I self-host almost everything, which is exactly why I’m building Defguard: an open-source WireGuard VPN with built-in MFA, written in Rust, fully under your control.