How to prefix a file or folder name with a . to hide it, how to use chflags, and how they differ. And what are all those .DS_Store and ._ files doing?
Finder
What is that text-encoded data embedded in so many Property Lists? Most are Bookmarks, and here’s how to decode them.
Some apps have odd problems when they’re run in translocation. Here’s how to tell whether they are, and what to do about it.
Gatekeeper may decide to run a new app from a random location, in translocation. The rules for this are explained, and how to ensure that doesn’t affect your apps.
If the Finder’s Get Info dialog may report inaccurate total file size, does that mean the folder sizes are also incorrect? And does this affect volumes too?
Documentation changed to match the bug, seldom-used features that no longer work, and malware protection that devoured parts of Xcode.
Classic Mac OS could give the size of data and resource forks. High Sierra ignored extended attributes, and Sonoma tries to add them, but only includes some.
Union mounts let you merge the contents of two volumes without copying any files. Do they work as expected in Sonoma’s APFS, though?
Details of the chain of information, from the UTI of the file to be opened, through LaunchServices’ database of document types. How to deal with problems.
Sparse bundle passwords, shared folders in macOS VMs, and security updates for VMs, are all important fixes. But none for the Finder.
