The new MegaMol build process is using CMake on Windows and Linux, and a unified repository makes MegaMol easier to build than ever.
For basic functionality, it is sufficient to enable BUILD_CONSOLE, BUILD_CORE, and BUILD_VISLIB. If you want to experience full functionality, you can enable all plugins to make use of a wealth of modules for different file formats, analysis, and rendering.
A quick start guide for using MegaMol can be found here, a more in-depth manual is also available on GitHub.
Note that all plugins in the master branch on GitHub have a Readme.md that describes the Modules and Calls contained in the plugin, as well as showing example usage and some screen grabs, where appropriate.