Backup and Recovery

What to Protect

Data	Location	Contains
Database	`~/.syncro/hub.db`	All records, trust scores, routing rules
Task content	`~/.syncro-data/tasks/`	Task descriptions and artifacts
Aliases	`~/.syncro-data/aliases.toml`	Human-readable task alias mappings
Config	`~/.syncro/config.toml`	Identity, store URL, server settings

Automatic Backup

The spl serve daemon backs up the database on every startup:

~/.local/share/syncropel/backups/hub.db.bak

This backup is stored OUTSIDE ~/.syncro/ — removing that directory does not affect the backup.

Manual Backup

# Create a timestamped backup
cp ~/.syncro/hub.db ~/.local/share/syncropel/backups/hub.db.$(date +%Y%m%d-%H%M%S)

# List available backups
ls -la ~/.local/share/syncropel/backups/

Recovery

# Stop the daemon
spl serve --stop

# Restore from backup
cp ~/.local/share/syncropel/backups/hub.db.bak ~/.syncro/hub.db

# Restart — trust and config rebuild automatically from records
spl serve --daemon

# Verify
spl status
spl task list
spl trust

What Rebuilds on Startup

The engine reconstructs all derived state from the immutable record log:

Trust scores — replayed from outcome records
Engine config — replayed from configuration records
Thread state — derived from records (state = fold(records))

Prevention

Use separate ports for development (--port 9200) and production (port 9100)
Development daemons use --memory for ephemeral storage
Task content files in ~/.syncro-data/ are independent of the database