Build an independent mobile file workspace that connects to Microsoft 365, lets users pin working folders and upload destinations, and maintains a verified offline cache with visible synchronization status. The first version should focus narrowly on recent-file access, background-tolerant transfer queues, folder-level search, bulk actions, and conflict-safe editing. Sell it initially as a team deployment that includes configuration and migration assistance rather than as an undifferentiated consumer storage service.

Mobile workers increasingly combine company-managed Windows computers with iPhones and iPads, while large cloud-storage applications are adding interface complexity without resolving basic offline file continuity. Current platform restrictions create execution risk, but they also make a focused, carefully engineered workflow more valuable.