unpackComponents takes a lot of time to run, and while it only runs the first time, it is bad to give a good first impression. Bugs related to this that may have to be filed: - extensions shipped in the apk aren't supported unless they are extracted, currently, which unpackComponents does. We should support extensions directly in the apk. - we do a cleanup with what the removed-files contains. If we unpack nothing, we don't need that, but we will need to clean-up left overs from upgrades. We can however do that at any moment when we are idle. - We unpack an update.locale file which I don't know what it is used for.
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