This is a little photo organisation program I'm writing for my own use. I'm an enthusiastic amateur photographer with my little iPhone (and several previous phones.) And I like showing pictures of my family on my backgrounds and screensavers.
We've hit the point where there are enough situations and categories and we often want just some specific chunks of the massive number of photos. That can be work vs home desktop background, dead pets we don't necessarily want to be reminded of during fast-rotation screensavers, or even just wanting some "theme" as if the screensaver were a music playlist.
The idea here is that you can run the organiser program on a set of directories that tag the photos in different ways. The tags could be where they were taken or who is in them, for instance. And you can specify that certain tags are mandatory (only those photos) or excluded (not those photos.) The organiser can then produce a directory of links to the appropriate photos suitable for a screensaver program or a directory of desktop images.
Symbolic links make me more comfortable than hard links... But the Mac screensaver program doesn't recognize symlinked images, so you have to use hard links. You can also use the "test" link type to just print a message instead of making a real link.
Turn an empty directory at ~/Dropbox/PhotoRepo/output/Shanna_Orion/ into a new photo repo for photos with multiple Shanna- or Orion-related tags and no "baby nipples" or "nsfw" tag, using hard links.
- ./repo_mod ~/Dropbox/PhotoRepo/output/Shanna_Orion/ -i ~/Dropbox/PhotoRepo/Images\ Labeled -b "shanna|orion|orion pregnancy" -t "-baby nipples-nsfw" -l hard
exiftool -d '%Y-%m-%d %H:%M:%S%%-03.c.%%e' '-filename<CreateDate' .
Related: use exiftool?