Autoupload of mobile phone pictures

Hi there, newbie here - just installed FileRun to my cloud storage so I can use it for backing up all my files instead of Google (moving away from them after they recently put my nose out of joint and also cause I'm a Huawei user).

So all good on the server front and install the app successfully and can see files that I have on my server BUT, am I being really stupid here but how do I set it up so that instead of all my photo's on my phone being backed up automatically to Google how do I set it up to use my Server instead, is this something that FileRun is capable of doing or do I need a separate app for that?  Had thought by the description of FileRun this was something it did?