Helpful, but in the real-world legislative systems I've interacted with, the patch (the bill text) isn't formatted as an algorithmic diff against the base docum

Helpful, but in the real-world legislative systems I've interacted with, the patch (the bill text) isn't formatted as an algorithmic diff against the base documents (statutes, for example). It is a baroque system that requires huge amounts of clerical effort to keep aligned and which makes understanding all but the simplest changes a mind-numbing exercise.