https://simplelogin.io/ (owned by Proton) is great for this. They have a feature to generate an email address by random word or even by uuid.

iOS has Lockdown Mode which it sounds like you could benefit from.

Professional CMake: A Practical Guide by Craig Scott is an excellent guide to modern cmake usage. Well worth the $30 if you need to build, maintain, or modify a CMake project.

https://crascit.com/professional-cmake/