After over a year of development, the Incus team has unveiled IncusOS, a locked-down, immutable Linux distribution tailored for running Incus containers with atomic updates and robust security features. Built on a minimal Debian 13 base, it leverages UEFI Secure Boot, TPM 2.0, and systemd tools for a seamless, API-driven management experience. This release promises to simplify deployments for developers and sysadmins seeking hardened environments on modern hardware.