As always, for all these small languages (MicroPython comes to mind, but even "real-world" languages such as Lua) - unless they grow a debugger, they'll always

As always, for all these small languages (MicroPython comes to mind, but even "real-world" languages such as Lua) - unless they grow a debugger, they'll always be silly toy languages nobody can use for serious work. I'd settle for a gdb backend, really. But printf-debugging is unacceptable.