diff --git a/custom/generate-specific-bootdisk.sh b/custom/generate-specific-bootdisk.sh
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+++ b/custom/generate-specific-bootdisk.sh
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+#!/bin/bash
+#     ____             __             ____  ______  __
+#    / __ \____  _____/ /_____  _____/ __ \/ ___/ |/ /
+#   / / / / __ \/ ___/ //_/ _ \/ ___/ / / /\__ \|   /
+#  / /_/ / /_/ / /__/ ,< /  __/ /  / /_/ /___/ /   |
+# /_____/\____/\___/_/|_|\___/_/   \____//____/_/|_| GEN BOOT DISK
+#
+# Repo:             https://github.com/sickcodes/Docker-OSX/
+# Title:            Mac on Docker (Docker-OSX)
+# Author:           Sick.Codes https://sick.codes/
+# Version:          3.1
+# License:          GPLv3+
+
+help_text="Usage: generate-specific-bootdisk.sh
+
+General options:
+    --model <string>                Device model, e.g. 'iMacPro1,1'
+    --serial <filename>             Device Serial number.
+    --board-serial <filename>       Board Serial number.
+    --uuid <filename>               SmUUID.
+    --mac-address <string>          Used to set the ROM value; lowercased and without a colon.
+    --output-bootdisk <filename>    Optionally change the bootdisk output filename.
+    --custom-plist <filename>       Optionally change the input plist.
+
+    --help, -h, help                Display this help and exit
+
+Example:
+    ./genboot.sh \\
+        --model iMacPro1,1 \\
+        --serial C02TW0WAHX87 \\    
+        --board-serial C027251024NJG36UE \\
+        --uuid 5CCB366D-9118-4C61-A00A-E5BAF3BED451 \\
+        --mac-address A8:5C:2C:9A:46:2F \\
+        --output-bootdisk OpenCore-nopicker.qcow2
+
+Author:  Sick.Codes https://sick.codes/
+Project: https://github.com/sickcodes/Docker-OSX/
+"
+
+PLIST_MASTER=config-nopicker-custom.plist
+
+# gather arguments
+while (( "$#" )); do
+    case "${1}"  in
+
+    --help | -h | h | help ) 
+                echo "${help_text}" && exit 0
+            ;;
+
+    --model=* | -m=* )
+                export DEVICE_MODEL="${1#*=}"
+                shift
+            ;;
+    --model* | -m* ) 
+                export DEVICE_MODEL="${2}"
+                shift
+                shift
+            ;;
+
+    --serial=* )
+                export SERIAL_NUMBER="${1#*=}"
+                shift
+            ;;
+    --serial* )
+                export SERIAL_NUMBER="${2}"
+                shift
+                shift
+            ;;
+
+    --board-serial=* )
+                export BOARD_SERIAL_NUMBER="${1#*=}"
+                shift
+            ;;
+    --board-serial* )
+                export BOARD_SERIAL_NUMBER="${2}"
+                shift
+                shift
+            ;;
+
+    --uuid=* )
+                export UUID="${1#*=}"
+                shift
+            ;;
+    --uuid* )
+                export UUID="${2}"
+                shift
+                shift
+            ;;
+
+    --mac-address=* )
+                export MAC_ADDRESS="${1#*=}"
+                shift
+            ;;
+    --mac-address* )
+                export MAC_ADDRESS="${2}"
+                shift
+                shift
+            ;;
+
+    --output-bootdisk=* )
+                export OUTPUT_QCOW="${1#*=}"
+                shift
+            ;;
+    --output-bootdisk* )
+                export OUTPUT_QCOW="${2}"
+                shift
+                shift
+            ;;
+
+    --custom-plist=* )
+                export INPUT_PLIST="${1#*=}"
+                shift
+            ;;
+    --custom-plist* )
+                export INPUT_PLIST="${2}"
+                shift
+                shift
+            ;;
+
+    *)
+                echo "Invalid option. Running with default values..."
+                shift
+            ;;
+    esac
+done
+
+
+download_qcow_efi_folder () {
+    git clone --depth 1 https://github.com/kholia/OSX-KVM.git
+    cp -ra ./OSX-KVM/OpenCore-Catalina/EFI .
+    mkdir -p ./EFI/OC/Resources
+    # clone some Apple drivers
+    git clone --depth 1 https://github.com/acidanthera/OcBinaryData.git
+    # copy said drivers into EFI/OC/Resources
+    cp -a ./OcBinaryData/Resources/* ./EFI/OC/Resources
+    # EFI Shell commands
+    touch startup.nsh && echo 'fs0:\EFI\BOOT\BOOTx64.efi' > startup.nsh
+}
+
+generate_bootdisk () {
+    [[ -e ./config-nopicker-custom.plist ]] || wget https://raw.githubusercontent.com/sickcodes/Docker-OSX/custom-identity/custom/config-nopicker-custom.plist
+    [[ -e ./opencore-image-ng.sh ]] || wget https://raw.githubusercontent.com/sickcodes/Docker-OSX/custom-identity/custom/opencore-image-ng.sh && chmod +x opencore-image-ng.sh
+    # plist required for bootdisks, so create anyway.
+    if [[ "${DEVICE_MODEL}" ]] \
+            && [[ "${SERIAL_NUMBER}" ]] \
+            && [[ "${BOARD_SERIAL_NUMBER}" ]] \
+            && [[ "${UUID}" ]] \
+            && [[ "${MAC_ADDRESS}" ]]; then
+        ROM_VALUE="${MacAddress//\:/}"
+        ROM_VALUE="${ROM_VALUE,,}"
+        sed -e s/{{DEVICE_MODEL}}/"${DEVICE_MODEL}"/g \
+            -e s/{{SERIAL_OLD}}/"${SERIAL_NUMBER}"/g \
+            -e s/{{BOARD_SERIAL_OLD}}/"${BOARD_SERIAL_NUMBER}"/g \
+            -e s/{{SYSTEM_UUID_OLD}}/"${UUID}"/g \
+            -e s/{{ROM_OLD}}/"${ROM_VALUE}"/g \
+            "${PLIST_MASTER}" > ./tmp.config.plist || exit 1
+    else
+        cat <<EOF
+Error: one of the following values is missing:
+
+--model "${DEVICE_MODEL:-MISSING}"
+--serial "${SERIAL_NUMBER:-MISSING}"
+--board-serial "${BOARD_SERIAL_NUMBER:-MISSING}"
+--uuid "${UUID:-MISSING}"
+--mac-address "${MAC_ADDRESS:-MISSING}"
+
+EOF
+        exit 1
+    fi
+
+    ./opencore-image-ng.sh \
+        --cfg "${INPUT_PLIST:-./tmp.config.plist}" \
+        --img "${OUTPUT_QCOW:-./${SERIAL_NUMBER}.OpenCore-nopicker.qcow2}" || exit 1
+        rm ./tmp.config.plist
+
+}
+
+main () {
+    download_qcow_efi_folder
+    generate_bootdisk
+}
+
+main
+