Crash-safe, race-free file writes for Go — TOCTOU protection via fingerprint verification, cross-platform file locking, atomic rename, and fsync for crash durability.
High-performance, hardware-aware Layer 0 deduplication engine. Uses 4-tier short-circuit logic (Size → Fringe → Full Hash) with xxHash128 to eliminate exact duplicates before they enter your processing pipeline. Python 3.11+, uv, SQLite.