Prerequisites:

• VSCode with the Emulicious Debugger extension is required.
• Edit the Emulicious extension in data\extensions\emulicious.emulicious-debugger-1.2.0\package.json. There is a section named "breakpoints". Just add "language": "wiz" below the entry for C and reload.
• Use -s cdb on the Wiz command-line.
• In an Emulicious debug session with its debug window open go to Tools -> Disassembly Settings and switch to the WLA DX assembler dialect. The RGBDS dialect would confuse namespace separators for local labels breaking local variable lookup.