Install onedrived-dev with a already OneDrive existing folder

[Benj0B]

Hello,

I gradually discover Linux: I created a dual boot Ubuntu / Win10, and I slowly discover this wonderful OS.

I have a OneDrive subscription that I need to keep, both professionally and personally.
I thank the contributors and creators of onedrived-dev for providing a solution for using OneDrive in a Linux environment.

Not being able to sync OneDrive really handicaps me to evolve under Ubuntu.
I want to install onedrived-dev but I still have a few questions after reading the readme.md :

In the description, it's indicate how to create an original OneDrive folder, where the files will be downloaded.
But that's not what I want to do : I have 700 GB of files with a low ADSL speed, I want to be able to point the config file directly to my OneDrive folder which already exists on my other internal dev / sdb hard drive.
How do I tell onedrived-dev the path to the folder that already exists ?
And will it understand that the files are already there ? Will it not, for example, delete the folder to download its content again ?

What about NGROK ? Is it necessary to install it?

Thank you to everyone who can help solve my problem.
As I said, I am very motivated to discover the Linux environment.
I just miss this step to get fully started on
Thanks in advance for your future responses.