Want one external drive from which you can boot two (or more) different versions of macOS? Here’s how to make it.
macOS
Apple has pushed an update to the data used by Gatekeeper, bringing its version number to 171, dated […]
Here are the answers – and are always open to alternatives.
Three riddles to solve this weekend. They’re more fun than a couple of thousand turgid words about the innards of macOS.
What does an error -67030 mean? How does one signing error lead to another? Helpful detail for interpreting results from checking signatures.
Apple has pushed an update to the data used by Gatekeeper, bringing its version number to 170, dated […]
You don’t have to add an Info.plist to a standalone Mach-O tool in order to sign it, or to get it notarized successfully. And more tips.
Open a PDF document, select a URL within it and Copy. Then paste it into a webpage for publication. Simple – but the URL then broke. Why?
System Integrity Protection can get in your way, and may be recommended to solve compatibility problems. It’s also changing again in Catalina.
Just after pushing its earlier update to Gatekeeper’s data, Apple has just pushed an update to its malware […]
The Eclectic Light Company 