AlmaLinux OS vs Debian

AlmaLinux OS is a free, open-source, community-owned enterprise Linux distribution designed for binary compatibility with RHEL. The project presents it as an option for users who need enterprise Linux without a commercial license agreement, including people seeking a CentOS Linux replacement. It can run on servers, workstations, virtual machines, cloud instances, containers, Raspberry Pi devices and Windows Subsystem for Linux environments. ISO downloads cover x86_64, aarch64, ppc64le and s390x architectures. The project also provides cloud images, OCI, Docker and UBI-compatible container images, Vagrant images, and live media with several desktop choices. A WSL image provides a terminal environment on Windows. The Foundation publishes security and bug-fix errata, and packages are GPG-signed and verified by default when installed. OpenSCAP, SCAP Workbench, OVAL streams and CIS tooling are available for auditing or hardening systems. Community support is available through forums, chat and Reddit; commercial support is offered separately by listed providers. The project plans stable updates and security patches for 8.x until 2029 and 9.x until 2032.

Debian is a free operating system created by the Debian Project, an association of individuals. Its systems use either the Linux or FreeBSD kernel and include more than 70,000 packages managed with APT, plus tools for managing packages across computers. Installation choices include a live system with the Calamares installer and an installer with options such as automated network installation. Debian supports architectures including amd64, i386, ARM variants, POWER, IBM System Z and RISC-V. Users can choose stable, testing or unstable releases, upgrade to a new release or update individual packages. Debian coordinates security advisories with other free software vendors, and many advisories are published the day a vulnerability becomes public. Its free Long Term Support extends stable releases to at least five years; commercial Extended LTS covers a limited set of packages beyond that. Official cloud images are available, and Debian can also run in virtual machines or containers. Help is available through documentation, mailing lists, IRC and consultants. Debian notes that hardware from companies that do not publish specifications may not work with GNU/Linux.