MRtrix3Tissue is a fork of the MRtrix3 project. It adds capabilities for 3-Tissue CSD modelling and analysis to a complete version of MRtrix3. More information can be found on the official website at https://3Tissue.github.io.
Various documentation on installation and usage can be found here.
General quick installation instructions can be found here.
Information about releases and major changes can be found here.