Smart previews always lived in <library>/Smart Previews, so a large set of proxies
filled the library's drive. The folder is now a per-library setting (prefs.json):
- library.smartPreviewsLocation shows the effective folder (path, count, size,
availability) or changes it; changing it needs an explicit choice for the
previews already built (move, leave or discard), and reset returns to the
library's own folder.
- The new folder must accept writes before anything moves. A folder whose parent
is missing (an unplugged drive) is an error and is never created on the current
drive; building also refuses while a chosen folder is unavailable.
- Building, discarding, status and offline rendering all use the chosen folder.
- Settings -> Performance -> Smart previews shows the path before building, what
it holds, the existing-previews choice, Choose Folder... and Use Library Folder.
The thumbnail cache stays in the library.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Clément LandClaude Sonnet 5.5
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