secureblue alternatives
Secureblue is an open-source, security-focused Linux distribution based on Fedora Atomic and CoreOS, utilizing rpm-ostree for container images. It prioritizes proactive security measures, such as disabling unprivileged user namespaces and enabling hardened_malloc, while maintaining SELinux and a user-friendly interface. The distribution includes features like DNSSEC, DNS-over-TLS, and Network Time Security to enhance system security without compromising usability.