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Investigating
Add .dropboxignore directory to exclude folders without using selective sync
Please please please can you add a feature that allows folders to be excluded from the Dropbox account (on windows and mac). For sure I'm not the first person to request this, but I'm yet to find a g...
I would love to see this implemented, and if so, I'll reconsider coming back to Dropbox.
But like others have hinted at, I too gave up. Syncing node_modules was killing me and my computer. Instead, I decided to go with rsync.net and I wrote my own Node CLI (https://github.com/manovotny/node-backup) to run or create rsync scripts, which includes the ability to ignore files and folders. Hooked up the the Mac's built-in cron, it's serving my quite nicely as an alternative.