diff --git a/global-functions.rsc b/global-functions.rsc
index d5ac31c..7d65f45 100644
--- a/global-functions.rsc
+++ b/global-functions.rsc
@@ -5,6 +5,7 @@
 # https://rsc.eworm.de/COPYING.md
 #
 # requires RouterOS, version=7.14
+# requires device-mode, fetch, scheduler
 #
 # global functions
 # https://rsc.eworm.de/
@@ -1071,6 +1072,7 @@
   :local ExpectedConfigVersionBefore $ExpectedConfigVersion;
   :local ReloadGlobalFunctions false;
   :local ReloadGlobalConfig false;
+  :local DeviceMode [ /system/device-mode/get ];
 
   :foreach Script in=[ /system/script/find where source~"^#!rsc by RouterOS\r?\n" ] do={
     :local ScriptVal [ /system/script/get $Script ];
@@ -1113,19 +1115,31 @@
         :if ([ :pick $SourceNew 0 18 ] = "#!rsc by RouterOS\n") do={
           :local Required ([ $ParseKeyValueStore [ $Grep $SourceNew ("\23 requires RouterOS, ") ] ]->"version");
           :if ([ $RequiredRouterOS $0 [ $EitherOr $Required "0.0" ] false ] = true) do={
-            :if ([ $ValidateSyntax $SourceNew ] = true) do={
-              $LogPrint info $0 ("Updating script: " . $ScriptVal->"name");
-              /system/script/set owner=($ScriptVal->"name") \
-                  source=[ $IfThenElse ($ScriptUpdatesCRLF = true) $SourceCRLF $SourceNew ] $Script;
-              :if ($ScriptVal->"name" = "global-config") do={
-                :set ReloadGlobalConfig true;
+            :local RequiredDM [ $ParseKeyValueStore [ $Grep $SourceNew ("\23 requires device-mode, ") ] ];
+            :local MissingDM ({});
+            :foreach Feature,Value in=$RequiredDM do={
+              :if ([ :typeof ($DeviceMode->$Feature) ] = "bool" && ($DeviceMode->$Feature) = false) do={
+                :set MissingDM ($MissingDM, $Feature);
               }
-              :if ($ScriptVal->"name" = "global-functions" || $ScriptVal->"name" ~ ("^mod/.")) do={
-                :set ReloadGlobalFunctions true;
+            }
+            :if ([ :len $MissingDM ] = 0) do={
+              :if ([ $ValidateSyntax $SourceNew ] = true) do={
+                $LogPrint info $0 ("Updating script: " . $ScriptVal->"name");
+                /system/script/set owner=($ScriptVal->"name") \
+                    source=[ $IfThenElse ($ScriptUpdatesCRLF = true) $SourceCRLF $SourceNew ] $Script;
+                :if ($ScriptVal->"name" = "global-config") do={
+                  :set ReloadGlobalConfig true;
+                }
+                :if ($ScriptVal->"name" = "global-functions" || $ScriptVal->"name" ~ ("^mod/.")) do={
+                  :set ReloadGlobalFunctions true;
+                }
+              } else={
+                $LogPrint warning $0 ("Syntax validation for script '" . $ScriptVal->"name" . \
+                  "' failed! Ignoring!");
               }
             } else={
-              $LogPrint warning $0 ("Syntax validation for script '" . $ScriptVal->"name" . \
-                "' failed! Ignoring!");
+              $LogPrintOnce warning $0 ("The script '" . $ScriptVal->"name" . "' requires disabled " . \
+                "device-mode features (" . [ :tostr $MissingDM ] . "). Ignoring!");
             }
           } else={
             $LogPrintOnce warning $0 ("The script '" . $ScriptVal->"name" . "' requires RouterOS " . \