In this video I look at some ways to optimize Time Machine by excluding certain files like logs, cache files, etc…
Command to Compare Last Two Backups
sudo tmutil listbackups | tail -2 | sed 's/.*/"&"/' | xargs sudo tmutil compare
Related articles online:
https://apple.stackexchange.com/questions/68515/time-machine-list-of-files-that-were-backed-up
https://www.howtogeek.com/294600/save-space-on-your-time-machine-drive-by-excluding-these-folders-from-backups/
https://apple.stackexchange.com/questions/25779/on-os-x-what-files-are-excluded-by-rule-from-a-time-machine-backup
Setting up Time Machine share on Synology NAS:https://youtu.be/jfUH-6ho9Zo