diff --git a/.gitmodules b/.gitmodules
index 564705684..e2628c8dd 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -46,3 +46,9 @@
 [submodule "lvgl/lv_examples"]
 	path = lvgl/lv_examples
 	url = https://github.com/littlevgl/lv_examples.git
+[submodule "extras/FreeRTOS-Plus-CLI"]
+	path = extras/FreeRTOS-Plus-CLI
+	url = git@github.com:NylonOS/FreeRTOS-Plus-CLI.git
+[submodule "extras/esp-cjson"]
+	path = extras/esp-cjson
+	url = https://github.com/maximkulkin/esp-cjson.git
diff --git a/extras/FreeRTOS-Plus-CLI b/extras/FreeRTOS-Plus-CLI
new file mode 160000
index 000000000..95a7b48f4
--- /dev/null
+++ b/extras/FreeRTOS-Plus-CLI
@@ -0,0 +1 @@
+Subproject commit 95a7b48f485c2ad9fc061629efee30ac7fb571f1
diff --git a/extras/esp-cjson b/extras/esp-cjson
new file mode 160000
index 000000000..2b9317101
--- /dev/null
+++ b/extras/esp-cjson
@@ -0,0 +1 @@
+Subproject commit 2b9317101a7ffbcf834eaebf7ef92b6d52d10ff4