With Fedora 27, we ship Atomic Host on multiple architectures which includes aarch64, ppc64le, and x86_64. We also provide Atomic Host updates for these arches every two weeks so that we can provide a tested, stable, and up-to-date OS. Fedora Atomic Host is built using traditional RPM packages available in the Fedora repository. For example, Fedora 27 Atomic Host is formed using packages from the Fedora 27 repository which are further composed into OSTree repository using rpm-ostree. It is possible to compose and host your own custom-built OSTree repository containing additional features. This article will further guide you on how to compose your own custom OSTree repository and update system from your own hosted OSTree repo.
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