I build things that actually work — at home and at work.
Thirty years in technology, fifteen of them professionally, now in cybersecurity. For most of that time I built things on my own, trying to keep up with whatever was new. Since AI agents arrived I keep up by building with them: a platform that runs my infrastructure, an app that runs a shop in four countries and a guide to culture in Warsaw. Below are the projects I am most proud of.
VALIS
My own multi-agent platform running on home infrastructure: six specialised agents (coordinator, engineer, reviewer, researcher, communications, personal assistant) on different models with different permission levels, orchestrated through a task queue, handing work to each other and getting a “second opinion” code review. VALIS watches the network and the cluster and runs the smart home, family finances, alert handling and sales — with one hard rule: agents can see everything, but changes to critical systems go through propose → approve → apply.
Homelab
An Unraid server, a three-node Proxmox cluster with Ceph, a UniFi network with VLAN segmentation and zone-based firewall rules, Home Assistant with Zigbee, Thread and Matter, a home SOC on Wazuh, UPS power with NUT and cloud backups. Everything is monitored (Prometheus, Grafana) and watched over by VALIS agents.
bywa.my
A daily-updated guide to cultural events in Warsaw: concerts, exhibitions, plays and things for kids, gathered automatically from more than a hundred sources (theatres, museums, clubs, community centres, institutions), then filtered and described so you can pick an evening out in a minute. No account, no tracking. In Polish.
barbrix
An app for selling LEGO on Allegro in Poland, Czechia, Slovakia and Hungary: orders, inventory, shipping labels, margins, prices in four currencies, plus integration with accounting and the product catalogue. A tool I use every day, not a demo.
Websites and visibility for small businesses
Lightweight, secure static websites (no WordPress), local SEO, Google Business Profiles and data that AI assistants can read. For practices, studios and service businesses — where trust matters and the phone number belongs on the first screen.
After hours — and after totality.
Chasing total solar eclipses
A journal of three expeditions: Oregon 2017, Texas–Arkansas 2024 and Spain 2026 — from a trip with a group of friends combined with touring the US West Coast, through a solo trip to Texas and a dash to Arkansas to outrun the clouds, to a family journey by camper van. Photos, videos, road stories and scroll-drawn maps; my own static site with no tracking, in Polish and English. Next up: 2027.
A practitioner, not a theorist.
By day I work in IT support and security at a cybersecurity company; after hours, on anything that can run on my own hardware. I am not a programmer by training: for years I built things myself, learning as I went. Today everything you see here comes from clearly defined requirements, AI agents doing the implementation, and a stubborn insistence that every solution has monitoring, a backup and a way back.
What interests me is the boundary between people and automation: where an agent may act on its own and where it has to ask. Most of what I know I learned from failures — my own.