Introduce side parameter in the flash.sh script.

scripts/flash.sh

@@ -1,25 +1,48 @@
 #!/bin/sh
 
+# Function to display help message
+display_help() {
+    echo "Usage: $0 [side]"
+    echo "Mounts the nice!nano MCU for flashing the specified side (left or right) of the keyboard."
+    echo "Example: $0 left"
+    exit 1
+}
+
 # Check if the script is run as root
-if [[ $UID != 0 ]]; then
-    echo "Please run this script with sudo:"
-    echo "sudo $0 $*"
+if [[ $EUID -ne 0 ]]; then
+    echo "Please run this script as root"
     exit 1
 fi
 
+# Check if argument is provided
+if [ $# -eq 0 ]; then
+    echo "Error: No side specified"
+    display_help
+fi
+
+# Check if the argument is valid
+if [ "$1" != "left" ] && [ "$1" != "right" ]; then
+    echo "Error: Invalid side specified"
+    display_help
+fi
+
 # Give some time to the user to mount the device.
 sleep 5
 
 # Create a mount point
 mkdir -p /media/usb
 
-# Right
-sudo mount /dev/disk/by-id/usb-Adafruit_nRF_UF2_97A391CF144F945C-0:0 /media/usb
-sudo cp ./build/right/zephyr/zmk.uf2 /media/usb/
+# Mount the USB drive based on the specified side
+if [ "$1" == "left" ]; then
+    sudo mount /dev/disk/by-id/usb-Adafruit_nRF_UF2_38F4230B63B3DA6E-0:0 /media/usb
+    sudo cp build/left/zephyr/zmk.uf2 /media/usb/
+elif [ "$1" == "right" ]; then
+    sudo mount /dev/disk/by-id/usb-Adafruit_nRF_UF2_97A391CF144F945C-0:0 /media/usb
+    sudo cp build/right/zephyr/zmk.uf2 /media/usb/
+fi
 
-# Left
-# sudo mount /dev/disk/by-id/usb-Adafruit_nRF_UF2_38F4230B63B3DA6E-0:0 /media/usb
-# sudo cp build/left/zephyr/zmk.uf2 /media/usb/
+# End message
+echo "Flashing to $1 side completed."
 
-# sudo cp build/reset/zephyr/zmk.uf2 /media/usb
-# sudo cp ~/Downloads/zmk_clear.uf2 /media/usb
+# Exit script
+exit 0