init project and set board to esp32s3

firmware/CMakeLists.txt

@@ -0,0 +1,6 @@
+# The following five lines of boilerplate have to be in your project's
+# CMakeLists in this exact order for cmake to work correctly
+cmake_minimum_required(VERSION 3.22)
+
+include($ENV{IDF_PATH}/tools/cmake/project.cmake)
+project(inet_mon)

firmware/main/CMakeLists.txt

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+idf_component_register(SRCS "inet_mon.c"
+                    INCLUDE_DIRS ".")

firmware/main/inet_mon.c

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+#include <stdio.h>
+
+void app_main(void)
+{
+
+}