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LaunchServices

When you don’t have permission to run an app on an M1 Mac

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You try to open an app on your M1 Mac, only to see an alert telling your that you don’t have permission to open it. Only that isn’t the reason.

January 26, 2021 Macs, Technology

How macOS overrides app behaviour, including quarantine

How apps can opt to set the quarantine flag on files they create, and how macOS can override that to protect you.

July 10, 2020 Macs, Technology

Bookmarks, a type of Alias: their access and use

They’re Base-64 encoded data which is related to the Finder Alias. Here’s how to resolve them in an app, at the command line, and in code.

May 21, 2020 Macs, Technology

What happens when you double-click a document? Processes, problems and solutions

An explanation of the magic which takes place when you double-click a document, the things that can go wrong, and how to fix them.

May 4, 2020 Macs, Technology

Learn (almost) everything about an app with lsappinfo

How to get all sorts of useful information about a running app or process from LaunchServices: and introduction to using lsappinfo.

March 4, 2020 Macs, Technology

Do you use files and folders on your Mac? Then Precize 1.9 should be invaluable

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A quick tour of this unique utility, and a recommended update for it which brings control over text size, auto-updates, and more.

August 24, 2019 Macs, Technology, Updates

Tools updated to fix security errors when opening documents

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Keep control over documents with quarantine flags to avoid bizarre security errors, using new versions of Pratique and Sandstrip.

August 7, 2019 Macs, Technology

Understanding signature checks on notarized apps in Mojave 10.14.5: 2

How checks differ when an app is launched from a new path, and the effects of gross changes to the Resources folder, and small changes to code.

July 11, 2019 Macs, Technology

Understanding signature checks on notarized apps in Mojave 10.14.5: 1

Why signature checks are so complex, and a walk through log entries of a notarized app launching normally in macOS 10.14.5.

July 9, 2019 Macs, Technology

Grokking Gatekeeper in Catalina

Important changes for anyone distributing command tools in particular, and a good time to ensure you only ship signed and notarized apps if possible.

June 12, 2019 Macs, Technology

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