Topics on C++ you should read about

cpp-topic-list.md

What to consider before starting a project:

• src: stacktrace, exceptions, allocator, static analysis
• code: platform code, feature flag, outcompilable debug
• stats: performance memory, image size, telemetry, scalability
• code review, in-service improvements, debugging, regressions, testing...

Interesting language features:

• + before argument-less lambda forces cast to a pointer to function: https://stackoverflow.com/a/18889029
• meta: decltype(..., void()) and void_t are the same
• operator overloading: https://stackoverflow.com/q/4421706
• static and constexpr: https://stackoverflow.com/a/26162710
• inline: https://stackoverflow.com/a/7418299
• member or non-member functions: http://www.drdobbs.com/cpp/how-non-member-functions-improve-encapsu/184401197