Capacitor background runner with gastby static webpack by public folder

Bonjour,
in gatsby react project with
capacitor for building
ios and android app,
i try to install Capacitor background runner
and after configuring
capacitor.config
when i sync with npx cap sync
return error
could not find .www in your projet
but mine webdir be on public directory!
and i not found a way for tell it
get on public for this
plugin

You can set webDir in the Capacitor config file - Capacitor Configuration | Capacitor Documentation