Can I add custom options in sdkconfig.defaults?

[willhelm]

I thought one could add custom options in sdkconfig.defaults such as:

CONFIG_THE_MEANING_OF_LIFE_IS=42

I thought this would be inserted into the two auto generated files sdkconfig and sdkconfig.h?

[ESP_Sprite]

No. The sdkconfig.defaults simply sets default options for existing config options. For your thing to work, you'd also need to define CONFIG_THE_MEANING_OF_LIFE_IS in a Kconfig somewhere.