can someone tell me which one i should be doing? i have this installed on my synology

[spring hazel]

not really sure what you are aasking?

backup is the built in integration, you can add other backup agent integrations which will then be usable in the backup configuration settings?

[frosty ibex]

I just wanna back up to correct place. Don’t know which I’m suppose to use

[spring hazel]

you set up the synology integration. then once its set up you should be able to select it as a target when you go to:
settings - system - backups

so in essence you use both "backup" is the backup system that creates backups and puts them places "synology" integration connects to your synology system and exposes it to the backup system

[frosty ibex]

Sweet ok cool.