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BareSnap is an open-source backup tool built with a "Spartan"
philosophy that prioritizes raw hardware performance ("real metal"). It strictly
rejects modern corporate abstractions like Docker, Kubernetes, or heavy external
dependencies.
KEY FEATURES:
* High Performance: Uses a linear entropy pipeline (FastCDC + XDelta3 +
LZ4/ZSTD) capable of processing gigabytes of local data in 0.3 seconds.
* Adaptive Cryptography: Includes a self-contained module that dynamically
switches between hardware-accelerated AES-256-GCM (using Intel AES-NI
instructions) and a lightweight software fallback using XChaCha20-Poly1305
for older legacy CPUs.
* Zero Telemetry: Completely private; it does not collect or track any user
behavior or data.
* Minimal Footprint: Compiles into a stripped, static binary of only ~1.2 MB,
utilizing zero external libraries or heavy runtimes.
Features
- Pure C11 Architecture: Monolithic, self-contained code with zero dynamic external dependencies.Static Binary Footprint: Compiles into a single ultra-lightweight executable (~1.2 MB).Content-Defined Chunking: High-speed deduplication engine using FastCDC and XDelta3.Dual-Layer Cryptography: Built-in secure encryption via XChaCha20 and AES-256-GCM.Low-Resource RAM Guard: Memory allocation locked with mlock to prevent swapping.Synchronous Block Protocol: High-resilience 4 MiB block transfer over raw SSH pipes.Hardened Chaos QA: Defends against kill -9, full disks (ENOSPC), and network drops.Zero Memory Leaks: 100% clean automation audited under Valgrind, ASan, and TSan.
