XCI-Cutter Qt 5.9.4 project multiplatform.
Starting from https://github.com/Destiny1984/XCI-Cutter , I decided to port the project to Qt/c++, to use on MacOS / Linux. At the moment this is an ALFA version, with only the cut function available (all the sanity checks implemented and no mod to original image).
To generate app redistributable, use command: /path/to/macdeployqt XCICutter.app -verbose=3 -dmg
done: change split size to 4,294,934,528