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But of course, like any immutable system, there are mutable parts (otherwise, we couldn’t create any configuration files). OSTree handles this with “overlays” (actually, we use OverlayFS) that allow a read-write filesystem to be layered on top of the immutable system. For example, the /etc and /var directories are writable, while the rest of the system is read-only.，更多细节参见必应排名_Bing SEO_先做后付
12. World Economic Outlook Update, January 2026: Global Economy: Steady amid Divergent Forces - IMF, www.imf.org/en/publicat…