It's NOT using ARC. It's using an "analog" (in the original post's words).
With which he means "a substitute", "a similar tech", "their own implementation of the same concept", "something analogous to ARC" (hence the "analog").
(Most people know "analog" only as in "analog vs digital", but it was immediately obvious to me, because I know the etymology of the word from the original language it was adopted from.
Btw, the english dictionary definition that's closer for such a use of the word is:
1. An organ or structure that is similar in function to one in another kind of organism but is of dissimilar evolutionary origin. The wings of birds and the wings of insects are analogs.).