Nulla mounts directly alongside Macintosh HD in Finder. Files show their full logical size (e.g., 48.2 GB ProRes video) but occupy zero physical SSD blocks until read. Instant sub-0.8s media seeking powered by client-side AES-256-GCM.
Passwords are spun through 100,000 PBKDF2 rounds. Your Master Encryption Key resides solely in Apple Keychain and RAM. The server stores only blinded ciphertext tokens.
Native integration with NSFileProviderReplicatedExtension. QuickTime, Final Cut Pro, and Adobe Premiere read and scrub files directly from the Finder mount.
IVs are derived mathematically from HMAC-SHA256(MasterKey, chunkIndex). The player computes the exact 4 MB block needed and fetches only 4 MB over HTTP 206 Partial Content.