Pydio-Sync on archlinux

Hello, using archlinux, I did install the pydio-sync package (dated 2018 28 01)
yaourt -S pydio-sync
When starting the sync program, I get an error "I could not detect any system tray on this system"
Under Windows or MacOs, we strat configuring the server. Not under Linux.

What file should I edit to enter the server https address, the username and the password, to make it work under Linux ?
I do not use pydio locally on my private computer / network !)

Thanks in advance.

you can check over here the readme has some explanations for which file you have to modify.