What’s the difference between plain text, marked-up plain text, and rich text? How can I tell them apart, and how do they work?
Big Sur has recently introduced a bug which can change the format of log datestamps, which can break Ulbow, Mints and T2M2. Here’s how to fix it.
When you go to perform a clean re-install of Catalina, what should you do? Which volume(s) to erase or delete, and how to fix problems?