Syncthing on a VPS questions

I've been using syncthing for a while now and more recently I've started to use a VPS but I find it to be a mild pain in the ass to setup and I'm wondering if there's a better way or just how are you administering?

I've been just editing the config.xml file and restarting it. It feels clunky editing it in nano especially when I have to delete a folder or remove a device.

I'm starting up on a new VPS and doing this initial setup again is mildly frustrating.

Another question, a friend is also going to be backing up some files onto this server (both of us treating it as untrusted), would it be better practice to set up 2 users each running their own syncthing@user service or just have it all under one?