By default, quarantine xattrs aren’t attached to new files created by an app. That behaviour is controlled by a setting in their Info.plist, and can be overridden in an Exceptions property list.
Month: December 2025
Some of Claude Monet’s series from 1903-04, Le Sidaner, Émile Claus, and ending with Lesser Ury from 1926. But there was a more sinister side to the fog and smog.
In a typical ~/Documents folder, 14% of all files have a provenance xattr attached to them, that could enable the app that last modified them to be identified. Could we make use of that?
Paintings starting with JMW Turner in 1844, through Monet in 1871, Winslow Homer, Jules Bastien-Lepage, Tom Roberts, Pissarro, and Childe Hassam.
Here are this weekend’s Mac riddles to entertain you through family time, shopping and recreation. 1: Passing time […]
Integers of different sizes and endianness, floating point numbers with a radix of 2 that can result in rounding and cancellation errors and NaNs, and bfloat16 for AI.
More mysterious interiors and cupboard views, a group portrait of the Nabis, and two of his models taking a break.
Why do so many files now have quarantine and other extended attributes, although they’re not apps, and may never have left that Mac?
Hephaistos or Vulcan in classical myth, cheated on by Aphrodite/Venus, and as creator of Pandora. In Bosch’s Last Judgement, and elsewhere.
How Mac applications evolved from a multitude of resources to a bundle formed from a standard layout of directories, and how they have come to be largely self-contained in macOS 26.
The Eclectic Light Company 