Local-first should mean that you do have it regardless of what you're using. Point 2 in Ink&Switch's original essay is "Your data is not trapped on one device".
FWIW, the term "local-first" wasn't coined by Ink&Switch so different people have different understanding of the term.
But, Ink&Switch rule regardless, I love what they're doing and everyone would be better off doing "local-first" in the way they suggest, don't get me wrong.
But, Ink&Switch rule regardless, I love what they're doing and everyone would be better off doing "local-first" in the way they suggest, don't get me wrong.