Configuration Overview
Arc uses a TOML configuration file (arc.toml) with environment variable overrides for flexibility.
Authentication
Arc uses token-based authentication to secure API access. Tokens are stored in a SQLite database with an in-memory cache for high-performance validation.
FIPS 140-3 Mode
Arc ships an optional FIPS build variant (arc-fips) for US federal, defense,
Storage File Format
Arc stores measurement data as columnar files on disk. You choose the on-disk format once, at deploy time, with a single setting: