Cd into a folder and git clone this project.
git clone git@github.com:martincarapia/InverseTissueShift.git
OS: Windows 7 SP1+, 8, 10, 64-bit versions only; Mac OS X 10.13+; Ubuntu 16.04, 18.04, or CentOS 7.
GPU: Graphics card with DX10 (shader model 4.0) capabilities.
Download Unity Hub and download Unity v2021.3.39f1
Install the Haply Inverse Installer v2.0 or greater.
Go to Projects -> Add -> Add project from disk -> navigate to the folder holding this project.
Now you should be able to open the project and voila! You can now start contributing.