Currently, only the line mode Mesh tools are being developed, the GUI tool provided earlier will be re-launched in due course.
During the beta test period, it seems simplest to deliver the binary distributions as simple ZIP files. To use them, simply unpack the file to a directory and either add that directory to the shell search path or copy the contents to a directory already in the search path.
When distribution of the GUI tool resumes, there will be platform specific installers for each platform once again.
The Mathematical Mesh reference tools are written in C under the Microsoft .NET Core 2.0 framework as Standalone Distribution files. All the files required to run the distribution are provided. It is not necessary to install .NET Core first.
There is no separate source file distribution, nor is this planned. To access the source files, clone the GitHub repository.