This article is a comprehensive guide on making C++ binaries highly debuggable, particularly for interactive debugging using tools like gdb. It focuses on configuring the C++ toolchain to produce binaries that are both efficient and easy to understand in the debugger. C++'s ahead-of-time compilation model requires a deliberate choice between debuggability and speed. The article presents various techniques, including enabling sanitizers, debug modes, and frame pointers to enhance the debugging experience.