This cross platform - Linux, Mac OS X and Windows - F# .Net library and smartphone app to chart the nine Maya waves of Carl Johan Calleman. It uses Fabulous as F# MVU (Elm-like) frontend to Xamarin.Forms.
If you want to know more about the nine Maya waves, see Links.
See YouTube video of the smartphone app for a video.
Information about the smartphone app is at Usage of the Smartphone App
Information about the usage of the F# NuGet library NineWaves you find at NuGet Package.
To interactively try out the F# NuGet package NineWaves, go to the Jupyter Notebook at
Contributing has information about how to contribute to NineWaves, by
filing bug reports or feature requests, to contributing source code, to adding documentation
or translations or any other way you can help NineWaves.