Setup

To start developing with VSCode, run ./fbt vscode_dist in project root. That should only be done once
After that, open firmware folder in VSCode: "File" > "Open folder"

For more details on fbt, see fbt docs.

Workflow

Commands for building firmware are invoked through Build menu: Ctrl+Shift+B.

To attach a debugging session, first build and flash firmware, then choose your debug probe in Debug menu (Ctrl+Shift+D).

Note that you have to detach debugging session before rebuilding and re-flashing firmware.