Error installing on Mac

[jerauf]

Checklist

• [X ] I have searched the issues page for any duplicate issues open or closed and confirmed that this bug has not been reported before.
• [ ] I have tested the issue with the current build.
• [ ] I have attached log files, uploaded sample data, and commands used so that the issue can be easily reproduced by the developers.

Bug Description

Tried installing on Mac and got the following error:

By not providing "FindQt6.cmake" in CMAKE_MODULE_PATH this project has
  asked CMake to find a package configuration file provided by "Qt6", but
  CMake did not find one.

  Could not find a package configuration file provided by "Qt6" with any of
  the following names:

    Qt6Config.cmake
    qt6-config.cmake

  Add the installation prefix of "Qt6" to CMAKE_PREFIX_PATH or set "Qt6_DIR"
  to a directory containing one of the above files.  If "Qt6" provides a
  separate development package or SDK, be sure it has been installed.

Steps to Reproduce

1. Followed Mac instructions https://github.com/harrypm/DomesdayDuplicator/wiki/Software-Setup-User-Guide#installing-the-software
2. Installed CMAKE
3. Ran make -j8
4. Above error

Expected Behaviour

Installed DdD app.

Actual Behaviour

Received above error.

Environment

• Operating System: Sequoia 15.3.1
• Hardware Used: Mac Mini 2023 M2 Pro

[harrypm]

https://github.com/simoninns/DomesdayDuplicator/issues/162

[snoopy870]

Same issue here. Any fix?