Split out functions and add multi mode for tml

default/bash/fns/drives

@@ -0,0 +1,59 @@
+# Write iso file to sd card
+iso2sd() {
+  if [[ $# -lt 1 ]]; then
+    echo "Usage: iso2sd <input_file> [output_device]"
+    echo "Example: iso2sd ~/Downloads/ubuntu-25.04-desktop-amd64.iso /dev/sda"
+    return 1
+  fi
+
+  local iso="$1"
+  local drive="$2"
+
+  if [[ -z $drive ]]; then
+    local available_sds=$(lsblk -dpno NAME | grep -E '/dev/sd')
+
+    if [[ -z $available_sds ]]; then
+      echo "No SD drives found and no drive specified"
+      return 1
+    fi
+
+    drive=$(omarchy-drive-select "$available_sds")
+
+    if [[ -z $drive ]]; then
+      echo "No drive selected"
+      return 1
+    fi
+  fi
+
+  sudo dd bs=4M status=progress oflag=sync if="$iso" of="$drive"
+  sudo eject "$drive"
+}
+
+# Format an entire drive for a single partition using exFAT
+format-drive() {
+  if [ $# -ne 2 ]; then
+    echo "Usage: format-drive <device> <name>"
+    echo "Example: format-drive /dev/sda 'My Stuff'"
+    echo -e "\nAvailable drives:"
+    lsblk -d -o NAME -n | awk '{print "/dev/"$1}'
+  else
+    echo "WARNING: This will completely erase all data on $1 and label it '$2'."
+    read -rp "Are you sure you want to continue? (y/N): " confirm
+
+    if [[ "$confirm" =~ ^[Yy]$ ]]; then
+      sudo wipefs -a "$1"
+      sudo dd if=/dev/zero of="$1" bs=1M count=100 status=progress
+      sudo parted -s "$1" mklabel gpt
+      sudo parted -s "$1" mkpart primary 1MiB 100%
+      sudo parted -s "$1" set 1 msftdata on
+
+      partition="$([[ $1 == *"nvme"* ]] && echo "${1}p1" || echo "${1}1")"
+      sudo partprobe "$1" || true
+      sudo udevadm settle || true
+
+      sudo mkfs.exfat -n "$2" "$partition"
+
+      echo "Drive $1 formatted as exFAT and labeled '$2'."
+    fi
+  fi
+}