diff --git a/meta-isar/recipes-app/hello-isar/hello-isar.bb b/meta-isar/recipes-app/hello-isar/hello-isar.bb
index 51dac2b7..484e5704 100644
--- a/meta-isar/recipes-app/hello-isar/hello-isar.bb
+++ b/meta-isar/recipes-app/hello-isar/hello-isar.bb
@@ -23,4 +23,4 @@ SRCREV = "a18c14cc11ce6b003f3469e89223cffb4016861d"
 inherit dpkg
 
 # Example of using alternative sbuild chroot
-SBUILD_FLAVOR="db2m"
+SBUILD_FLAVOR="extra-packages"
diff --git a/meta-isar/recipes-app/libhello/libhello.bb b/meta-isar/recipes-app/libhello/libhello.bb
index 71604bf5..4e6522fe 100644
--- a/meta-isar/recipes-app/libhello/libhello.bb
+++ b/meta-isar/recipes-app/libhello/libhello.bb
@@ -16,4 +16,4 @@ SRCREV = "98f2e41e7d05ab8d19b0c5d160b104b725c8fd93"
 inherit dpkg
 
 # Example of using alternative sbuild chroot
-SBUILD_FLAVOR="db2m"
+SBUILD_FLAVOR="extra-packages"
diff --git a/meta-isar/recipes-core/images/isar-image-base.bb b/meta-isar/recipes-core/images/isar-image-base.bb
index b381d859..d635a3aa 100644
--- a/meta-isar/recipes-core/images/isar-image-base.bb
+++ b/meta-isar/recipes-core/images/isar-image-base.bb
@@ -10,4 +10,7 @@ LIC_FILES_CHKSUM = "file://${LAYERDIR_core}/licenses/COPYING.GPLv2;md5=751419260
 
 PV = "1.0"
 
+SBUILD_FLAVOR = "extra-packages"
+SBUILD_CHROOT_INSTALL = "hello-isar"
+
 inherit image
diff --git a/meta-isar/recipes-devtools/sbuild-chroot/sbuild-chroot-host-db2m.bb b/meta-isar/recipes-devtools/sbuild-chroot/sbuild-chroot-host-extra-packages.bb
similarity index 91%
rename from meta-isar/recipes-devtools/sbuild-chroot/sbuild-chroot-host-db2m.bb
rename to meta-isar/recipes-devtools/sbuild-chroot/sbuild-chroot-host-extra-packages.bb
index 1795c5a2..b035a926 100644
--- a/meta-isar/recipes-devtools/sbuild-chroot/sbuild-chroot-host-db2m.bb
+++ b/meta-isar/recipes-devtools/sbuild-chroot/sbuild-chroot-host-extra-packages.bb
@@ -8,5 +8,5 @@ DESCRIPTION = "Isar sbuild/schroot filesystem for host (docbook-to-man)"
 
 require recipes-devtools/sbuild-chroot/sbuild-chroot-host.bb
 
-SBUILD_FLAVOR = "db2m"
+SBUILD_FLAVOR = "extra-packages"
 SBUILD_CHROOT_PREINSTALL_EXTRA ?= "docbook-to-man"
diff --git a/meta-isar/recipes-devtools/sbuild-chroot/sbuild-chroot-target-db2m.bb b/meta-isar/recipes-devtools/sbuild-chroot/sbuild-chroot-target-extra-packages.bb
similarity index 91%
rename from meta-isar/recipes-devtools/sbuild-chroot/sbuild-chroot-target-db2m.bb
rename to meta-isar/recipes-devtools/sbuild-chroot/sbuild-chroot-target-extra-packages.bb
index e2e10433..80440df2 100644
--- a/meta-isar/recipes-devtools/sbuild-chroot/sbuild-chroot-target-db2m.bb
+++ b/meta-isar/recipes-devtools/sbuild-chroot/sbuild-chroot-target-extra-packages.bb
@@ -8,5 +8,5 @@ DESCRIPTION = "Isar sbuild/schroot filesystem for target (docbook-to-man)"
 
 require recipes-devtools/sbuild-chroot/sbuild-chroot-target.bb
 
-SBUILD_FLAVOR = "db2m"
+SBUILD_FLAVOR = "extra-packages"
 SBUILD_CHROOT_PREINSTALL_EXTRA ?= "docbook-to-man"
diff --git a/meta/classes/image.bbclass b/meta/classes/image.bbclass
index 73f1d52c..5fea18b0 100644
--- a/meta/classes/image.bbclass
+++ b/meta/classes/image.bbclass
@@ -85,6 +85,7 @@ inherit image-tools-extension
 inherit image-postproc-extension
 inherit image-locales-extension
 inherit image-account-extension
+inherit install-custom-packages-sbuild-flavor
 
 # Extra space for rootfs in MB
 ROOTFS_EXTRA ?= "64"
diff --git a/meta/classes/install-custom-packages-sbuild-flavor.bbclass b/meta/classes/install-custom-packages-sbuild-flavor.bbclass
new file mode 100644
index 00000000..04650f51
--- /dev/null
+++ b/meta/classes/install-custom-packages-sbuild-flavor.bbclass
@@ -0,0 +1,64 @@
+# This software is a part of ISAR.
+# Copyright (C) Siemens AG, 2023
+#
+# SPDX-License-Identifier: MIT
+#
+# This file extends the image.bbclass to supply tools for futher imager functions
+
+inherit sbuild
+
+SBUILD_FLAVOR = "extra-packages"
+SBUILD_CHROOT_INSTALL ??= ""
+
+SCHROOT_MOUNTS = "${WORKDIR}:${PP_WORK} ${IMAGE_ROOTFS}:${PP_ROOTFS} ${DEPLOY_DIR_IMAGE}:${PP_DEPLOY}"
+SCHROOT_MOUNTS += "${REPO_ISAR_DIR}/${DISTRO}:/isar-apt"
+
+ROOTFS_INSTALL_COMMAND:prepend = " install_custom_packages_sbuild_flavor"
+
+install_custom_packages_sbuild_flavor() {
+
+    schroot_create_configs
+    insert_mounts
+
+    if [ -n "${SBUILD_CHROOT_INSTALL}" ]; then
+        echo "Installing self built packages: ${SBUILD_CHROOT_INSTALL}"
+
+        distro="${BASE_DISTRO}-${BASE_DISTRO_CODENAME}"
+        if [ ${ISAR_CROSS_COMPILE} -eq 1 ]; then
+            distro="${HOST_BASE_DISTRO}-${BASE_DISTRO_CODENAME}"
+        fi
+
+        # prepare isar-apt
+        sudo -E chroot ${SCHROOT_DIR} sh -c " \
+            mkdir -p '/etc/apt/sources.list.d'
+            echo 'deb [trusted=yes] file:///isar-apt ${DEBDISTRONAME} main' > \
+                '/etc/apt/sources.list.d/isar-apt.list'
+
+            mkdir -p '/etc/apt/preferences.d'
+            cat << EOF > '/etc/apt/preferences.d/isar-apt'
+Package: ${SBUILD_CHROOT_INSTALL}
+Pin: release n=${DEBDISTRONAME}
+Pin-Priority: 1000
+EOF"
+
+        E="${@ isar_export_proxies(d)}"
+        deb_dl_dir_import ${schroot_dir} ${distro}
+        sudo -E chroot ${SCHROOT_DIR} sh -c " \
+            apt-get update \
+                -o Dir::Etc::SourceList='sources.list.d/isar-apt.list' \
+                -o Dir::Etc::SourceParts='-' \
+                -o APT::Get::List-Cleanup='0'
+            apt-get -o Debug::pkgProblemResolver=yes --no-install-recommends -y \
+                --allow-unauthenticated --allow-downgrades --download-only install \
+                ${SBUILD_CHROOT_INSTALL}"
+
+        deb_dl_dir_export ${schroot_dir} ${distro}
+        sudo -E chroot ${SCHROOT_DIR} sh -c " \
+            apt-get -o Debug::pkgProblemResolver=yes --no-install-recommends -y \
+                --allow-unauthenticated --allow-downgrades install \
+                ${SBUILD_CHROOT_INSTALL}"
+    fi
+
+    remove_mounts
+    schroot_delete_configs
+}
