Solver and cache: content-addressable execution
Update Impracticality: The extensive pre-processing for CH makes it unsuitable for frequent updates, let alone OsmAnd’s goal of supporting near real-time changes through hourly map updates.
，这一点在旺商聊官方下载中也有详细论述
尊重各地实际，保持历史耐心和战略定力，“一步一步坚定走，一个阶段一个阶段向前推进”。
The comparison with Git doesn’t stop there - OSTree allows you to create commits, new versions of our system, and switch between these versions just like you would with Git commits (git commit and git checkout).
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