diff --git a/src/define.sh b/src/define.sh
index 9ce9b00..63075c5 100644
--- a/src/define.sh
+++ b/src/define.sh
@@ -1287,7 +1287,7 @@ isMido() {
   local lang="$2"
   local sum
 
-  [[ "${MIDO:-}" == [Nn]* ]] && return 1
+  disabled "${MIDO:-}" && return 1
 
   sum=$(getMido "$id" "en" "sum")
   [ -n "$sum" ] && return 0
@@ -1300,7 +1300,7 @@ isESD() {
   local id="$1"
   local lang="$2"
 
-  [[ "${ESD:-}" == [Nn]* ]] && return 1
+  disabled "${ESD:-}" && return 1
 
   case "${id,,}" in
     "win11${PLATFORM,,}" | "win10${PLATFORM,,}" )
diff --git a/src/entry.sh b/src/entry.sh
index 2a35133..e5ba630 100644
--- a/src/entry.sh
+++ b/src/entry.sh
@@ -46,7 +46,7 @@ sed -u \
   -e 's/failed to load Boot/skipped Boot/g' \
   -e 's/0): Not Found/0)/g' &
 
-if [[ "$SHUTDOWN" != [Yy1]* ]]; then
+if ! enabled "$SHUTDOWN"; then
   exec "${cmd[@]}" ${ARGS:+ $ARGS} >"$pipe"
 fi
 
diff --git a/src/install.sh b/src/install.sh
index 45b2db0..fbc6d11 100644
--- a/src/install.sh
+++ b/src/install.sh
@@ -110,7 +110,7 @@ skipInstall() {
   # Check if the ISO was already processed by our script
   magic=$(dd if="$iso" bs=1 count=1 status=none | tr -d '\000')
   magic="$(printf '%s' "$magic" | od -A n -t x1 -v | tr -d ' \n')"
-  byte="16" && [[ "$MANUAL" == [Yy1]* ]] && byte="17"
+  byte="16" && enabled "$MANUAL" && byte="17"
 
   if [[ "$magic" != "$byte" ]]; then
 
@@ -215,7 +215,7 @@ finishInstall() {
 
   if [[ "$aborted" != [Yy1]* ]]; then
     # Mark ISO as prepared via magic byte
-    byte="16" && [[ "$MANUAL" == [Yy1]* ]] && byte="17"
+    byte="16" && enabled "$MANUAL" && byte="17"
     if ! printf '%b' "\x$byte" | dd of="$iso" bs=1 seek=0 count=1 conv=notrunc status=none; then
       warn "failed to set magic byte in ISO file: $iso"
     fi
@@ -243,7 +243,7 @@ finishInstall() {
       fi
     else
       # Enable secure boot + TPM on manual installs as Win11 requires
-      if [[ "$MANUAL" == [Yy1]* || "$aborted" == [Yy1]* ]]; then
+      if enabled "$MANUAL" || [[ "$aborted" == [Yy1]* ]]; then
         if [[ "${DETECTED,,}" == "win11"* ]]; then
           BOOT_MODE="windows_secure"
           file="$STORAGE/windows.mode"
@@ -296,7 +296,7 @@ abortInstall() {
   local efi
 
   [[ "${iso,,}" == *".esd" ]] && exit 60
-  [[ "${UNPACK:-}" == [Yy1]* ]] && exit 60
+  enabled "${UNPACK:-}" && exit 60
 
   efi=$(find "$dir" -maxdepth 1 -type d -iname efi -print -quit)
 
@@ -556,7 +556,7 @@ extractImage() {
 
   fKill "progress.sh"
 
-  if [[ "${UNPACK:-}" != [Yy1]* ]]; then
+  if ! enabled "${UNPACK:-}"; then
 
     LABEL=$(isoinfo -d -i "$iso" | sed -n 's/Volume id: //p')
 
@@ -739,7 +739,7 @@ detectImage() {
 
     skipVersion "${DETECTED,,}" && return 0
 
-    if ! setXML "" && [[ "$MANUAL" != [Yy1]* ]]; then
+    if ! setXML "" && ! enabled "$MANUAL"; then
       MANUAL="Y"
       desc=$(printEdition "$DETECTED" "this version")
       warn "the answer file for $desc was not found ($DETECTED.xml), $FB."
@@ -776,7 +776,7 @@ detectImage() {
 
   if [ -z "$DETECTED" ]; then
     msg="Failed to determine Windows version from image"
-    if setXML "" || [[ "$MANUAL" == [Yy1]* ]]; then
+    if setXML "" || enabled "$MANUAL"; then
       info "${msg}!"
     else
       MANUAL="Y"
@@ -803,8 +803,8 @@ detectImage() {
   msg="the answer file for $desc was not found ($DETECTED.xml)"
   local fallback="/run/assets/${DETECTED%%-*}.xml"
 
-  if setXML "$fallback" || [[ "$MANUAL" == [Yy1]* ]]; then
-    [[ "$MANUAL" != [Yy1]* ]] && warn "${msg}."
+  if setXML "$fallback" || enabled "$MANUAL"; then
+    ! enabled "$MANUAL" && warn "${msg}."
   else
     MANUAL="Y"
     warn "${msg}, $FB."
@@ -1047,7 +1047,7 @@ updateImage() {
 
   if [ ! -s "$asset" ] || [ ! -f "$asset" ]; then
     asset=""
-    if [[ "$MANUAL" != [Yy1]* ]]; then
+    if ! enabled "$MANUAL"; then
       MANUAL="Y"
       warn "no answer file provided, $FB."
     fi
@@ -1093,7 +1093,7 @@ updateImage() {
     fi
   fi
 
-  if [[ "$MANUAL" != [Yy1]* ]]; then
+  if ! enabled "$MANUAL"; then
 
     xml=$(basename "$asset")
     info "Adding $xml for automatic installation..."
@@ -1111,7 +1111,7 @@ updateImage() {
 
   fi
 
-  if [[ "$MANUAL" == [Yy1]* ]]; then
+  if enabled "$MANUAL"; then
 
     wimlib-imagex update "$wim" "$index" --command "delete --force /$file" > /dev/null || true
 
@@ -1124,11 +1124,11 @@ updateImage() {
   fi
 
   local find="$file"
-  [[ "$MANUAL" == [Yy1]* ]] && find="$org"
+  enabled "$MANUAL" && find="$org"
   path=$(find "$dir" -maxdepth 1 -type f -iname "$find" -print -quit)
 
   if [ -f "$path" ]; then
-    if [[ "$MANUAL" != [Yy1]* ]]; then
+    if ! enabled "$MANUAL"; then
       mv -f "$path" "${path%.*}.org"
     else
       mv -f "$path" "${path%.*}.xml"
diff --git a/src/mido.sh b/src/mido.sh
index eeef986..79835ae 100644
--- a/src/mido.sh
+++ b/src/mido.sh
@@ -90,15 +90,15 @@ download_windows() {
   # This is the *only* request we make that Fido doesn't. Fido manually maintains a list of all the Windows release/edition product edition IDs in its script (see: $WindowsVersions array). This is helpful for downloading older releases (e.g. Windows 10 1909, 21H1, etc.) but we always want to get the newest release which is why we get this value dynamically
   # Also, keeping a "$WindowsVersions" array like Fido does would be way too much of a maintenance burden
   # Remove "Accept" header that curl sends by default
-  [[ "$DEBUG" == [Yy1]* ]] && echo "Parsing download page: ${url}"
+  enabled "$DEBUG" && echo "Parsing download page: ${url}"
   download_page_html=$(curl --silent --max-time 30 --user-agent "$user_agent" --header "Accept:" --max-filesize 1M --fail --proto =https --tlsv1.2 --http1.1 -- "$url") || {
     handle_curl_error "$?" "Microsoft"
     return $?
   }
 
-  [[ "$DEBUG" == [Yy1]* ]] && echo -n "Getting Product edition ID: "
+  enabled "$DEBUG" && echo -n "Getting Product edition ID: "
   product_edition_id=$(echo "$download_page_html" | grep -Eo '<option value="[0-9]+">Windows' | cut -d '"' -f 2 | head -n 1 | tr -cd '0-9' | head -c 16)
-  [[ "$DEBUG" == [Yy1]* ]] && echo "$product_edition_id"
+  enabled "$DEBUG" && echo "$product_edition_id"
 
   if [ -z "$product_edition_id" ]; then
     error "Product edition ID not found!"
@@ -110,7 +110,7 @@ download_windows() {
   org_id="y6jn8c31"
   vls_url="https://vlscppe.microsoft.com/tags?org_id=$org_id&session_id=$session_id"
 
-  [[ "$DEBUG" == [Yy1]* ]] && echo "Getting Session ID: $session_id"
+  enabled "$DEBUG" && echo "Getting Session ID: $session_id"
 
   # Permit Session ID
   curl --silent --max-time 30 --output /dev/null --user-agent "$user_agent" --header "Accept:" --max-filesize 100K --fail --proto =https --tlsv1.2 --http1.1 -- "$vls_url" || {
@@ -125,7 +125,7 @@ download_windows() {
   instance_id="560dc9f3-1aa5-4a2f-b63c-9e18f8d0e175"
   ov_url="https://ov-df.microsoft.com/mdt.js?instanceId=$instance_id&PageId=si&session_id=$session_id"
 
-  [[ "$DEBUG" == [Yy1]* ]] && echo -n "Getting OV data: "
+  enabled "$DEBUG" && echo -n "Getting OV data: "
 
   ov_data=$(curl --silent --max-time 30 --user-agent "$user_agent" --header "Accept:" --max-filesize 1M --fail --proto =https --tlsv1.2 --http1.1 -- "$ov_url") || {
     handle_curl_error "$?" "Microsoft"
@@ -145,7 +145,7 @@ download_windows() {
     return 1
   fi
 
-  [[ "$DEBUG" == [Yy1]* ]] && echo "$ovw"
+  enabled "$DEBUG" && echo "$ovw"
 
   sleep 0.2
 
@@ -154,7 +154,7 @@ download_windows() {
   mdt=$(date +%s%3N)
   ov_url="https://ov-df.microsoft.com/?session_id=$session_id&CustomerId=$instance_id&PageId=si&w=$ovw&mdt=$mdt&rticks=$rticks"
 
-  [[ "$DEBUG" == [Yy1]* ]] && echo "Sending OV reply: $instance_id"
+  enabled "$DEBUG" && echo "Sending OV reply: $instance_id"
 
   curl --silent --max-time 30 --output /dev/null --user-agent "$user_agent" --header "Accept:" --max-filesize 100K --fail --proto =https --tlsv1.2 --http1.1 -- "$ov_url" || {
     # This should only happen if there's been some change to how this API works
@@ -162,7 +162,7 @@ download_windows() {
     return $?
   }
 
-  [[ "$DEBUG" == [Yy1]* ]] && echo -n "Getting language SKU ID: "
+  enabled "$DEBUG" && echo -n "Getting language SKU ID: "
 
   sku_url="https://www.microsoft.com/software-download-connector/api/getskuinformationbyproductedition?profile=$profile&ProductEditionId=$product_edition_id&SKU=undefined&friendlyFileName=undefined&Locale=en-US&sessionID=$session_id"
   language_skuid_json=$(curl --silent --max-time 30 --request GET --user-agent "$user_agent" --referer "$url" --header "Accept:" --max-filesize 100K --fail --proto =https --tlsv1.2 --http1.1 -- "$sku_url") || {
@@ -178,8 +178,8 @@ download_windows() {
     return 1
   fi
 
-  [[ "$DEBUG" == [Yy1]* ]] && echo "$sku_id"
-  [[ "$DEBUG" == [Yy1]* ]] && echo "Getting ISO download link..."
+  enabled "$DEBUG" && echo "$sku_id"
+  enabled "$DEBUG" && echo "Getting ISO download link..."
 
   # Get ISO download link
   # If any request is going to be blocked by Microsoft it's always this last one (the previous requests always seem to succeed)
@@ -267,7 +267,7 @@ download_windows_eval() {
   local iso_download_page_html=""
   local url="https://www.microsoft.com/en-us/evalcenter/download-$windows_version"
 
-  [[ "$DEBUG" == [Yy1]* ]] && echo "Parsing download page: ${url}"
+  enabled "$DEBUG" && echo "Parsing download page: ${url}"
   iso_download_page_html=$(curl --silent --max-time 30 --user-agent "$user_agent" --location --max-filesize 1M --fail --proto =https --tlsv1.2 --http1.1 -- "$url") || {
     handle_curl_error "$?" "Microsoft"
     return $?
@@ -279,7 +279,7 @@ download_windows_eval() {
     return 1
   fi
 
-  [[ "$DEBUG" == [Yy1]* ]] && echo "Getting download link.."
+  enabled "$DEBUG" && echo "Getting download link.."
 
   filter="https://go.microsoft.com/fwlink/?linkid=[0-9]\+&clcid=0x[0-9a-z]\+&culture=${culture,,}&country=${country,,}"
 
@@ -350,7 +350,7 @@ download_windows_eval() {
       fi ;;
     "arm64" )
       if [[ "${iso_download_link,,}" != *"a64"* && "${iso_download_link,,}" != *"arm64"* ]]; then
-        if [[ "$DEBUG" == [Yy1]* ]]; then
+        if enabled "$DEBUG"; then
           echo "Found download link: $iso_download_link"
           echo "Link for ARM platform currently not available!"
         fi
@@ -358,7 +358,7 @@ download_windows_eval() {
       fi ;;
   esac
 
-  if [[ "$DEBUG" == [Yy1]* && "$VERIFY" == [Yy1]* && "${lang,,}" == "en"* ]]; then
+  if enabled "$DEBUG" && enabled "$VERIFY" && [[ "${lang,,}" == "en"* ]]; then
     compare=$(getMido "$id" "$lang" "")
     if [[ "${iso_download_link,,}" != "${compare,,}" ]]; then
       echo "Retrieved link does not match the fixed link: $compare"
@@ -632,7 +632,7 @@ verifyFile() {
   local check="$4"
 
   if [ -n "$size" ] && [[ "$total" != "$size" && "$size" != "0" ]]; then
-    if [[ "$VERIFY" == [Yy1]* || "$DEBUG" == [Yy1]* ]]; then
+    if enabled "$VERIFY" || enabled "$DEBUG"; then
       warn "The downloaded file has a different size ( $total bytes) than expected ( $size bytes). Please report this at $SUPPORT/issues"
     fi
   fi
@@ -641,7 +641,7 @@ verifyFile() {
   local algo="SHA256"
 
   [ -z "$check" ] && return 0
-  [[ "$VERIFY" != [Yy1]* ]] && return 0
+  ! enabled "$VERIFY" && return 0
   [[ "${#check}" == "40" ]] && algo="SHA1"
 
   local msg="Verifying downloaded ISO..."
@@ -700,7 +700,7 @@ downloadFile() {
   fi
 
   info "$msg..."
-  [[ "$DEBUG" == [Yy1]* ]] && echo "Downloading: $url"
+  enabled "$DEBUG" && echo "Downloading: $url"
 
   { wget "$url" -O "$iso" --continue -q --timeout=30 --no-http-keep-alive --user-agent "$agent" --show-progress "$progress"; rc=$?; } || :
 
diff --git a/src/power.sh b/src/power.sh
index a689d23..a10401b 100644
--- a/src/power.sh
+++ b/src/power.sh
@@ -101,7 +101,7 @@ finish() {
       local file="$STORAGE/windows.boot"
       touch "$file"
       ! setOwner "$file" && error "Failed to set the owner for \"$file\" !"
-      if [[ "$REMOVE" != [Nn]* ]]; then
+      if ! disabled "$REMOVE"; then
         rm -f "$BOOT" 2>/dev/null || true
       fi
     fi
@@ -219,7 +219,7 @@ graceful_shutdown() {
   finish "$code"
 }
 
-[[ "$SHUTDOWN" != [Yy1]* ]] && return 0
+! enabled "$SHUTDOWN" && return 0
 [ -n "${QEMU_TIMEOUT:-}" ] && TIMEOUT="$QEMU_TIMEOUT"
 
 _trap graceful_shutdown SIGTERM SIGHUP SIGABRT SIGQUIT
diff --git a/src/samba.sh b/src/samba.sh
index ea61d59..8404b63 100644
--- a/src/samba.sh
+++ b/src/samba.sh
@@ -13,10 +13,10 @@ SMB_PID="/var/run/samba/smbd.pid"
 
 rm -f "$SMB_PID" "$NMB_PID" "$DDN_PID"
 
-[[ "$SAMBA" == [Nn]* ]] && return 0
-[[ "$NETWORK" == [Nn]* ]] && return 0
+disabled "$SAMBA" && return 0
+disabled "$NETWORK" && return 0
 
-if [[ "$DHCP" == [Yy1]* ]]; then
+if enabled "$DHCP"; then
   socket="$IP"
   hostname="$IP"
   interfaces="$VM_NET_DEV"
@@ -37,7 +37,7 @@ fi
 
 html "Initializing shared folder..."
 SAMBA_CONFIG="/etc/samba/smb.conf"
-[[ "$DEBUG" == [Yy1]* ]] && echo "Starting Samba daemon..."
+enabled "$DEBUG" && echo "Starting Samba daemon..."
 
 addShare() {
   local dir="$1"
@@ -179,7 +179,7 @@ if ! smbd -l /var/log/samba; then
   error "Failed to start Samba daemon!"
 fi
 
-if [[ "$SAMBA_DEBUG" == [Yy1]* ]]; then
+if enabled "$SAMBA_DEBUG"; then
   tail -fn +0 /var/log/samba/log.smbd --pid=$$ &
 fi
 
@@ -191,7 +191,7 @@ esac
 if [[ "${BOOT_MODE:-}" == "windows_legacy" ]]; then
 
   # Enable NetBIOS on Windows 7 and lower
-  [[ "$DEBUG" == [Yy1]* ]] && echo "Starting NetBIOS daemon..."
+  enabled "$DEBUG" && echo "Starting NetBIOS daemon..."
 
   rm -f /var/log/samba/log.nmbd
 
@@ -200,14 +200,14 @@ if [[ "${BOOT_MODE:-}" == "windows_legacy" ]]; then
     error "Failed to start NetBIOS daemon!"
   fi
 
-  if [[ "$SAMBA_DEBUG" == [Yy1]* ]]; then
+  if enabled "$SAMBA_DEBUG"; then
     tail -fn +0 /var/log/samba/log.nmbd --pid=$$ &
   fi
 
 else
 
   # Enable Web Service Discovery on Vista and up
-  [[ "$DEBUG" == [Yy1]* ]] && echo "Starting wsddn daemon..."
+  enabled "$DEBUG" && echo "Starting wsddn daemon..."
   rm -f /var/log/wsddn.log
 
   if ! wsddn -i "${interfaces%%,*}" -H "$hostname" --unixd --log-file=/var/log/wsddn.log --pid-file="$DDN_PID"; then
@@ -215,7 +215,7 @@ else
     error "Failed to start wsddn daemon!"
   fi
 
-  if [[ "$SAMBA_DEBUG" == [Yy1]* ]]; then
+  if enabled "$SAMBA_DEBUG"; then
     tail -fn +0 /var/log/wsddn.log --pid=$$ &
   fi