Jacek Galowicz is a systems architect, Nixpkgs contributor and maintainer of the NixOS Integration Test Driver. He is the founder of Applicative Systems, a software development consulting firm, and Nixcademy, corporate Nix/NixOS training provider. With a background ranging from microhypervisors, CI/CD automation, and writing technical books, Jacek focuses on building resilient, machine-verified software infrastructure that lasts.