As a developer who frequently works with ESP32, I am looking to create a custom menuconfig interface. I would appreciate any guidance on how to get started with this process or if there are any existing alternatives available for the ESP-IDF framework. Thank you in advance for your assistance.
You can create ESP-IDF components with their own KConfig file, which is what is being displayed by the menuconfig tool, as documented by Espressif and the Linux kernel.
https://docs.espressif.com/projects/esp-idf/en/stable/esp32/api-reference/kconfig.html
There are tons of KConfig files in ESP-IDF where you can get started to take a look at them.
https://github.com/espressif/esp-idf/blob/master/components/lwip/Kconfig