Virtually creating subdirs for other tags might be unhandleable for some programs.

[ToxicMushroom]

If for example you'd have 16 tags and run tree in root.

Tagfs will currently have 16 dirs at the root level, 16*15 at the next, 16*15*14 at the next ...
which would be \sum _{i=1}^{n}\frac{n!}{i!} which will explode very fast.

For this reason we probably don't want to show empty subdirs by default.

Possible solutions

• manually having to create the empty subdirs.
• renames on files could use some special syntax to detect that you want to add a tag ?
• simply not advertising the directories inside readdir of parent folders but letting you lookup the dir and call readdir on them to navigate to them directly (unsure if file managers will like this, might not be usable).