Why Junior Mobile Devs Must Block On-Device AI Transcripts from Phone Backups

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A workflow guide aimed at junior engineers joining mobile AI projects warns that on-device voice transcripts can silently enter iCloud or Google backups if stored in default directories. Local stores created during early pull requests often contain utterances, partial captions, and speaker labels that were never intended for cloud sync channels. The guide recommends treating backup exclusion as a mandatory merge gate, requiring developers to confirm a transcript file is absent from backup contents before any PR is approved. Engineers are advised to store SQLite files in Application Support rather than Documents and to explicitly set exclusion flags on file URLs. The checklist also requires verifying that a restored backup cannot resurrect transcript data after a rollback, and any untested assumptions must be documented as limitations rather than marked as passing coverage.

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