consequences of `sudo rm` apps that shipped with the OS (like Photos, Messages, Mail) I've got numerous OSes installed on my Macintosh laptop for certain reasons. So I'd like to be as lightweight in my OS X as possible. What are the consequences of sudo rm -rf'ing  the following application that are allegedly unmodifiable/deletable because it’s required by OS X?

I am not a photographer so I don't really need

Photos.app Maps.app "Image Capture.app" "Photo Booth.app"


For communication I use emails mainly and I much prefer mutt so I'd like to get rid of

Mail.app Messages.app Contacts.app


I use vim mainly (and atom &amp; Xcode occasionally) so I'd also like to get rid of 

TextEdit.app Notes.app "Utilities/Script Editor.app"


I also don't see myself ever using

Calculator.app Calendar.app Dashboard.app "DVD player.app" "Game Center.app" 
iBooks.app Reminders.app Stickies.app "Time Machine.app"


These are what I use OS X mainly for 


iOS development (sometimes)
Web development: mainly to test browser compatibility
Updating the firmware


So would I break anything important if I delete all the applications mentioned above?
I wouldn't expect deleting the applications from the "/Applications" folder to break anything for you. Mostly because any part of these applications that is used by other applications will be stored in other locations like the "/Library" or "/System/Library" folder.

Having said this, I don't see any real benefit to deleting these applications. When Apple release an update for the operating system there is a good chance that it will restore a good portion of the files that you've deleted.

If you aren't using these applications the only benefit I can see to deleting these files is getting you back a little bit of hard drive space. I would recommend not deleting them from "/Applications", and just in case, I would STRONGLY recommend against deleting anything from the "/Library" or "/System/Library" folders.