To install Diferencia you only need to go to release page on GitHub Release select the platform and the version and download it.
Then you just need to rename the file to something more meaningful name such as diferencia
and add it to your PATH
directory.
In case of Linux
and Mac OS X
you can run next commands:
mv diferencia_XXX_amd64 diferencia
chmod 755 diferencia
mv diferencia /usr/local/bin/diferencia
In case of Windows
you can run next commands:
ren diferencia_windows_amd64.exe diferencia.exe
set PATH=%PATH%;<diferencia_directory>