# Pack files into an archive
6cy pack -o archive.6cy -i file1.txt file2.txt

# List archive contents
6cy list archive.6cy

# Extract files
6cy unpack archive.6cy -C ./output_dir

# View archive info
6cy info archive.6cy

# Create encrypted archive
6cy pack -o secure.6cy -i sensitive.dat --password "mypassword"

# Use FEC for error recovery (10 data shards, 4 parity shards)
6cy pack -o resilient.6cy -i data/ --fec 10/4

# Use content-defined chunking for deduplication
6cy pack -o dedup.6cy -i data/ --cdc --merkle

# Recover from damaged archive
6cy recover damaged.6cy -o recovered.6cy

# Merge archives
6cy merge archive1.6cy archive2.6cy -o merged.6cy

use sixcy::Archive;

let opts = sixcy::PackOptions {
    default_codec: sixcy::CodecId::Zstd,
    level: 3,
    use_cdc: true,
    build_merkle: true,
    ..Default::default()
};

let mut ar = Archive::create("data.6cy", opts)?;
ar.add_file("readme.txt", b"Hello, world!")?;
ar.finalize()?;

src/
├── archive.rs      # High-level Archive API
├── block.rs        # Block format (84-byte headers)
├── superblock.rs   # Archive header (512 bytes)
├── codec/          # Compression codec registry
├── crypto/         # AES-256-GCM + Argon2id
├── cdc.rs          # Gear64 content-defined chunking
├── fec.rs          # Reed-Solomon forward error correction
├── merkle.rs       # Binary Merkle tree + proofs
├── sharding.rs     # Shamir's Secret Sharing
├── stego.rs        # LSB steganography
├── chaos.rs        # Block scrambling utilities
├── io_stream/      # Archive reader/writer
├── index/          # File index management
├── recovery/       # Index-bypass recovery scanner
├── perf.rs        # Performance utilities
└── plugin.rs      # C ABI for codec plugins