How and where should I keep backups of system configurations? - sh.itjust.works

Sorry for adding to the massive pile of backup-related question, but I could not figure out how to manage backups from existing answers… I want to backup my VPS setup (think container-defining files, its volumes, and etc configs), but am unsure where to put it. Does keeping these in the VPS itself make sense? If so, how do I create and manage the backup? Also, I would need a remote copy - what is the good location for this? I wish I could copy to my laptop, but obviously I cannot do that automatically. Should I pay money for a backup? I want to avoid paying lots of money just for backups. Thanks in advance!