A comprehensive technical talk covering modern C++ techniques applied to embedded systems development. Topics span from fundamentals (class types, namespaces, constexpr, STL algorithms, atomics, std::span) through object-oriented patterns (dynamic and static polymorphism, templates, variadic templates, template metaprogramming, concepts, SFINAE) to embedded-specific optimizations (compiler flags, assembly listings, map files, linker scripts, placement new, lambda expressions, hardware register access, RTOS task wrappers, and fixed-point arithmetic). The talk also compares vtable overhead of dynamic vs. static polymorphism, explains the static initialization order fiasco and the Myers singleton pattern, and covers mathematical utilities including complex numbers, C++20 math constants, and fixed-point Q-notation arithmetic for FPU-less microcontrollers.