diff --git a/lib/build-all-ng.sh b/lib/build-all-ng.sh
index 73a42833e..ea84ae39e 100644
--- a/lib/build-all-ng.sh
+++ b/lib/build-all-ng.sh
@@ -190,7 +190,8 @@ function build_all()
 		CRYPTROOT_SSH_UNLOCK CRYPTROOT_SSH_UNLOCK_PORT CRYPTROOT_SSH_UNLOCK_KEY_NAME ROOT_MAPPER NETWORK HDMI \
 		USB WIRELESS ARMBIANMONITOR DEFAULT_CONSOLE FORCE_BOOTSCRIPT_UPDATE SERIALCON UBOOT_TOOLCHAIN2 toolchain2 \
 		BUILD_REPOSITORY_URL BUILD_REPOSITORY_COMMIT DESKTOP_AUTOLOGIN BUILD_MINIMAL BUILD_TARGET BUILD_STABILITY \
-		HOST BUILD_IMAGE BOARDFAMILY DEB_STORAGE REPO_STORAGE REPO_CONFIG REPOSITORY_UPDATE PACKAGE_LIST_RELEASE
+		HOST BUILD_IMAGE BOARDFAMILY DEB_STORAGE REPO_STORAGE REPO_CONFIG REPOSITORY_UPDATE PACKAGE_LIST_RELEASE \
+		LOCAL_MIRROR
 
 		read -r BOARD BRANCH RELEASE BUILD_TARGET BUILD_STABILITY BUILD_IMAGE <<< "${line}"
 
diff --git a/lib/general.sh b/lib/general.sh
index 979a5550b..139c2da2b 100644
--- a/lib/general.sh
+++ b/lib/general.sh
@@ -172,6 +172,9 @@ create_sources_list()
 		echo "deb http://apt.armbian.com $RELEASE main ${RELEASE}-utils ${RELEASE}-desktop" > $SDCARD/etc/apt/sources.list.d/armbian.list
 	fi
 
+	# add local package server if defined. Suitable for development
+	[[ -n $LOCAL_MIRROR ]] && echo "deb http://$LOCAL_MIRROR $RELEASE main ${RELEASE}-utils ${RELEASE}-desktop" >> $SDCARD/etc/apt/sources.list.d/armbian.list
+
 	display_alert "Adding Armbian repository and authentication key" "/etc/apt/sources.list.d/armbian.list" "info"
 	cp $SRC/config/armbian.key $SDCARD
 	chroot $SDCARD /bin/bash -c "cat armbian.key | apt-key add - > /dev/null 2>&1"