Preserve host destinations and zstd options

.env.example

@@ -12,10 +12,12 @@ START_TIMEOUT=90
 WAIT_INTERVAL=3
 START_RETRIES=1
 LOCK_FILE="/run/lock/zorruno-docker-backup.lock"
+ZSTD_EXTRA_OPTS="-T0 -12"
 
 # Rclone destination becomes <remote>/beaver/.
 RCLONE_ENABLED=0
 RCLONE_REMOTE="gdrive:dockerbackups"
+RCLONE_HOST_SUBDIR=1
 RCLONE_EXTRA_ARGS=""
 
 # The SMB share must already be mounted by the operating system.