One correction that I need to make for this video for SnapRAID is that after adding the drives and settings you need to click the wrench/screwdriver icon in the UI and Sync one time manually or the script will fail to run properly.
0:00 - Fixing a previous mistake
2:25 - More on timeshift
3:29 - SnapRAID
8:59 - mergerfs
13:30 - More on symlinks
14:35 - Outro