I used TagSpaces a bit, it does what it claims and is a decent enough application. The electron part is less disturbing when you realize it's mostly a GUI, and

I used TagSpaces a bit, it does what it claims and is a decent enough application. The electron part is less disturbing when you realize it's mostly a GUI, and there is almost nothing it wants to do without your active participation (the reason why I gave up on it). It helps you organize tags in file, but you should be ready to code something yourself if you expected to watch folders and match patterns and auto tag. Same for sync, it won't have much to do with it, though it seems S3 support has been added. In the end I didn't see anything I really wanted from it, as finding files by tag is already one click/command away, tagging files isn't crazy complicated either (and when it was, I ended up going back to 'find' anyway), and I had to use cron scripts anyway to deal with sync and new files. Tagspaces is nice, but I don't know if anyone caring enough about file org to install a dedicated app also will be satisfied with the feature set.