Overlayfs backend #180
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Overlayfs backend #180
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Co-authored-by: Miod Vallat <118974489+dustanddreams@users.noreply.github.com>
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The PR adds an OverlayFS backend to OBuilder.
OverlayFS is a union filesystem allowing a hierarchy of layers to be stacked on top of any other filesystem. Notable this is useful as TmpFS can be used as the underlying filesystem with a x2 performance improvement over BTRFS on NMVe.