diff --git a/live/root/etc/systemd/system/agama-dud.service b/live/root/etc/systemd/system/agama-dud.service
new file mode 100644
index 0000000000..4ac4598547
--- /dev/null
+++ b/live/root/etc/systemd/system/agama-dud.service
@@ -0,0 +1,28 @@
+[Unit]
+Description=Agama DUD
+
+After=network-online.target
+
+# and after we process agama params like info which can contain password
+After=agama-cmdline-process.service
+# the DUD should replace wrong self_update
+After=agama-self-update.service
+
+# before starting the Agama servers so they use the new packages
+Before=agama-web-server.service
+Before=agama.service
+# before interactive password services
+Before=live-password-dialog.service
+Before=live-password-systemd.service
+
+[Service]
+Type=oneshot
+Environment=TERM=linux
+ExecStart=agama-dud
+TTYReset=yes
+TTYVHangup=yes
+StandardInput=tty
+TimeoutStartSec=infinity
+
+[Install]
+WantedBy=default.target
diff --git a/live/root/usr/bin/agama-dud b/live/root/usr/bin/agama-dud
new file mode 100644
index 0000000000..ac22c9a420
--- /dev/null
+++ b/live/root/usr/bin/agama-dud
@@ -0,0 +1,27 @@
+#!/bin/sh
+
+# Experimental DUD funtionality for Agama
+#
+# Usage: inst.dud=URI [inst.dud=URI]
+#
+# This is a very simple version of the DUD functionality
+# - There can be multiple inst.dud=URI entries, but...
+# - All of them are considered to be RPMs
+# - The script does not check if downloading succeeded
+# - Or for any deps of the package
+# - Of whether installation/upgrade succeeded
+# - Does not restart itself if the script is updated
+
+# check if there is any DUD
+if ! grep -q "\b\(inst\|agama\)\.dud=.\+\b" /run/agama/cmdline.d/agama.conf; then
+  echo "No DUD present"
+  exit 0
+fi
+
+for URI in `sed -n 's/\(.*[[:space:]]\|^\)\(inst\|agama\)\.dud=\([^[:space:]]\+\).*/\3/p' /run/agama/cmdline.d/agama.conf`; do
+  echo "Downloading DUD from" $URI
+  TMPDUD=`mktemp /tmp/agama-XXXXXXXXXX.rpm`
+  agama download $URI $TMPDUD;
+  rpm --upgrade --force --verbose --hash --noverify --nodeps --excludedocs $TMPDUD
+  rm $TMPDUD
+done
diff --git a/live/src/agama-installer.changes b/live/src/agama-installer.changes
index 1b6f656e7d..b73b772b0d 100644
--- a/live/src/agama-installer.changes
+++ b/live/src/agama-installer.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Fri Mar 21 09:58:52 AM UTC 2025 - Lukas Ocilka <locilka@suse.com>
+
+- Added the initial functionality for inst.dud
+  (jsc#3670 and jsc#AGM-65)
+
 -------------------------------------------------------------------
 Fri Mar 21 07:31:34 UTC 2025 - Imobach Gonzalez Sosa <igonzalezsosa@suse.com>