[MacTUG] A Reference: All About macOS Catalina System Files - The Mac Observer

[Marlon A. Griffith]

"""
A recent article prompted me to pull together a reference page for some 
fundamental changes in the structure of macOS Catalina. That includes 
volume roles, firm links, and read-only System files. I’ll break out the 
articles by groups for easy reference.

Apple
General
Relevant macOS Security
APFS (Apple File System)

https://www.macobserver.com/tips/quick-tip/reference-all-about-macos-catalina-system-files/
"""