[c0nsumer]

I do something similar, by having a pretty global exclude for folders called donotbackup in my backup tools. Quite useful.

[noodlesUK]

As far as backup is concerned, a well-supported (by Borg, restic, and others) way of excluding directories is by putting a file that conforms to the CACHEDIR.TAG standard.

https://bford.info/cachedir/

[c0nsumer]

Thanks! I wasn't aware of this. Mostly it's for Apple's Time Machine which doesn't support it, but this is neat to hear about.