

You should be able to do everything through the web interface.
You can make network shares by creating shared folders under Storage->Shared Folders then configure your Windows shares through Services->SMB/CIFS
Install the openmediavault-compose plugin to manage your docker containers.
I would also suggest installing the openmediavault-wireguard plugin for secure remote access to your services from outside your network.
I built a C64 laptop using one of these. Here it is on a train ride connecting to a BBS.