The Operating Challenge
Migrating 1.52 TB of unstructured cloud drive data containing 355k+ files into Notion resulted in duplicate folders, broken API payloads (>5 GB file limits), and phantom sync errors.
Personal Cloud Infrastructure · Mar 2026 → Present01. Problem & Context 02. Architecture & Solution 03. Measurable Impact 04. Technology Stack
Terabyte-Scale Google Drive to Notion Database Migrator
Google Drive → Notion byte-integrity migrator designed for unattended cloud deployment on lightweight VM infrastructure, executing 6-pass deterministic triage, property-based testing, and chunked uploads.
Technical Implementation
Engineered a 6-pass deterministic triage pipeline (phantom recovery, exact folder dedup, near-duplicate merge, cross-folder file dedup, content-conservation invariant enforcement) with strict mypy typing, Hypothesis property tests, and a chunked Notion block uploader.
Results & Verification
Detected 164,403 phantom rows with zero data loss; passed row-count and content-conservation invariants across 100% of processed data.
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