Emacs has a git client, Magit, which can use ediff, the Elisp implementation of diff. Since Emacs is widely used for parsing, and can parse using tree-sitter,

Emacs has a git client, Magit, which can use ediff, the Elisp implementation of diff. Since Emacs is widely used for parsing, and can parse using tree-sitter, Emacs doesn’t seem to benefit from difftastic. But perhaps I’m overlooking some capability of difftastic.