data-at-rest
Post-quantum hybrid cryptography for data at rest (Rust core; Python/Node/Go bindings). AGPL-3.0. XChaCha20-Poly1305 · Argon2id · ML-KEM-1024 · ML-DSA-87 · VOPRF.
Python toolkit for Protocol Buffers — four pillars: message diffing, schema compatibility, linting (buf BASIC parity), and data-at-rest scan/filter.