Project folder and workspace
The project folder is the folder on your PC that contains this app's source code. All N78-APA publishing answers and generated store files are saved inside this folder under .apa.
The workspace registry on your computer remembers which project you were working on. To reopen an existing app, point at a folder that already contains .apa\app.json.
No cloud account is required for the desktop preview. See Where your data lives.