During committing of larger feature over GIT, I recognised a need to perform a side by side diffs instead the typical line-in-line diffs which are default by running git diff or the same line-by-line diff which is provided by the Fork.app
However you can do side-by-side diffs with git!
Set a diff tool of your choice:
git difftool --tool=vimdiff
Or write it to ~/.gitconfig:
tool = vimdiff
Now you can see your changes in the vimdiff tool by running: