Follow along with the video below to see how to install our site as a web app on your home screen.
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We use CentOS because it's free, because it has a long support lifecycle (7 years instead of for instance 13 months for Fedora), because Atomic Rocket Turtle supports it and because we like Red Hat-style Linux distributions.
CentOS, for all the reasons described above. RHEL/CentOS is the most widely supported distro you'll find by both the community, and commercial companies.