Someone asks if a mysterious black box has demons in it. The response? "Yea but they're based." Another person questions what they're based on, and the answer is simply: "C++." The joke is a play on "microservices" vs "microdaemons" (daemons being background processes in Unix/Linux, pronounced like "demons"). The title references how people still call them "services" instead of the technically correct "daemons"—and jokes that they forgot the 'A' in daemon. But the real gold here is the "based" pun. In tech, we say something is "based on" a technology (like "based on C++"), but the internet slang "based" means being unapologetically yourself. So when someone asks if it has demons, the answer works on both levels: yes it has daemons (background processes), and yes they're based (written in C++). Chef's kiss of a double entendre. The fact that C++ is the foundation makes it even funnier—because of course the demons would be written in the language that's basically controlled chaos with pointers.