Adding wifi SSID and PASSWORD to sdkconfig - esp32

Question

I'm creating a wifi application using ESP-IDF based on the examples but the example I'm using has options for setting the SSID and PASSWORD under:
Example Connection Configuration
when using idf.py menuconfig and which are used by CONFIG_EXAMPLE_WIFI_SSID and CONFIG_EXAMPLE_WIFI_PASSWORD in the code.
I want to set SSID and PASSWORD in my own project without using this in CMakeLists.txt:
set(EXTRA_COMPONENT_DIRS $ENV{IDF_PATH}/examples/common_components/protocol_examples_common)
without the above there isn't a way to define SSID and PASSWORD. They appear in:
build/config/kconfig_menus.json
but I can't seem to keep this from being overwritten in my own project. sdkconfig states it should not be edited.
Is there a best practice for using idf.py menuconfig? Or do most people just use sdkconfig.defaults and not use idf.py menuconfig?

Answer 1

I eventually tracked down the file Kconfig.projbuild in the example project via the build system docs:
Each component may also include a Kconfig file defining the component
configuration options that can be set via menuconfig. Some components
may also include Kconfig.projbuild and project_include.cmake files,
which are special files for overriding parts of the project.
created my own version and put it in main and the options now appear when using idf.py menuconfig. Thanks to this video.

Answer 2

When we use ESP-IDF example and change config using idf.py menuconfig there is one config option example configuration that is custom or user's own configuration created by espressif. And we can also make our own configuration like that.
Kconfig.projbuild is used for making our own configuration. for details see below links.
how-to-add-custom-configuration-in-project-config
Espressif official doc