Since version 1.8.3, PixInsight is distributed on Mac OS X nearly the same way as it is on FreeBSD, Linux and Windows. Instead of a single application bundle (PixInsight.app), the PixInsight distribution consists of a base PixInsight folder where all executables, modules, scripts and support files are stored on a common set of subdirectories. The PixInsight Core executable is a regular application bundle, namely PixInsight.app, located on the base PixInsight folder:
The new distribution allows us to keep our update system working under the new version 2 code signing policy established by Apple with the release of Mac OS X 10.9.5. It is also more coherent with the rest of platforms and facilitates working with modules, scripts and documentation, which is essential for a development platform (which is what PixInsight actually is, besides an image processing application).
To install PixInsight version 1.8.3 on your Mac, download the installation package and uncompress it on your /Applications folder. This will create the /Applications/PixInsight/ base folder, as shown on the screenshot above. On this base folder you'll find the PixInsight.app application bundle, which you must launch to run PixInsight. If you added a previous version to the Dock, you'll have to replace the existing dock icon with a new one pointing to PixInsight.app on its new location.
The new distribution allows us to keep our update system working under the new version 2 code signing policy established by Apple with the release of Mac OS X 10.9.5. It is also more coherent with the rest of platforms and facilitates working with modules, scripts and documentation, which is essential for a development platform (which is what PixInsight actually is, besides an image processing application).
To install PixInsight version 1.8.3 on your Mac, download the installation package and uncompress it on your /Applications folder. This will create the /Applications/PixInsight/ base folder, as shown on the screenshot above. On this base folder you'll find the PixInsight.app application bundle, which you must launch to run PixInsight. If you added a previous version to the Dock, you'll have to replace the existing dock icon with a new one pointing to PixInsight.app on its new location.