diff --git a/macos/flashusb.sh b/macos/flashusb.sh
index 430af9d..93e5d4e 100755
--- a/macos/flashusb.sh
+++ b/macos/flashusb.sh
@@ -239,34 +239,36 @@ log "Expected config partition after flash: $TARGET_CONFIG_PART"
 log "Target disk info:"
 diskutil info "$TARGET_DISK" || die "Unable to inspect target disk"
 
-echo
-printf "Type 'YES' to continue: "
-read -r CONFIRM
-[ "$CONFIRM" = "YES" ] || die "Aborted."
+if ! [ "$1" == "config" ]; then
+	echo
+	printf "Type 'YES' to continue: "
+	read -r CONFIRM
+	[ "$CONFIRM" = "YES" ] || die "Aborted."
 
-log "Unmounting target disk..."
-diskutil unmountDisk force "$TARGET_DISK" || die "Failed to unmount $TARGET_DISK"
+	log "Unmounting target disk..."
+	diskutil unmountDisk force "$TARGET_DISK" || die "Failed to unmount $TARGET_DISK"
 
-log "Flashing image with progress..."
-pv -s "$IMG_SIZE_BYTES" "$IMG" \
-    | gunzip \
-    | dd of="$TARGET_RAW_DISK" bs=4m
+	log "Flashing image with progress..."
+	pv -s "$IMG_SIZE_BYTES" "$IMG" \
+		| gunzip \
+		| dd of="$TARGET_RAW_DISK" bs=4m
 
-log "Syncing writes..."
-sync
+	log "Syncing writes..."
+	sync
 
-log "Ejecting and re-reading disk..."
-diskutil eject "$TARGET_DISK" >/dev/null 2>&1 || true
-sleep 2
+	log "Ejecting and re-reading disk..."
+	diskutil eject "$TARGET_DISK" >/dev/null 2>&1 || true
+	sleep 2
 
-log "Waiting for disk to come back..."
-if ! wait_for_disk "$TARGET_DISK" 15; then
-    warn "Disk node did not reappear quickly. You may need to replug the drive."
+	log "Waiting for disk to come back..."
+	if ! wait_for_disk "$TARGET_DISK" 15; then
+		warn "Disk node did not reappear quickly. You may need to replug the drive."
+	fi
+
+	log "Disk layout after flashing:"
+	diskutil list "$TARGET_DISK" || warn "Could not list flashed disk yet"
 fi
 
-log "Disk layout after flashing:"
-diskutil list "$TARGET_DISK" || warn "Could not list flashed disk yet"
-
 ENV_FILES="$(find "$SEARCH_DIR" -maxdepth 1 -type f -name '*.env' | sort || true)"
 
 if [ -n "$ENV_FILES" ]; then