Did you read the article? The software being discussed is the state wide database of registered voters.
New Hampshire already requires paper ballots, and voter ID, but it is also necessary to know who the registered voters are.
Did YOU read the article?
Its a discussion of the problems of the software "supply-chain," often foreign-coded, with unknown and unvetted vendors.
Its intro was a specific example of the NH voter registry database, but it moved into a discussion of voting systems in general (of course with required discussions about Russia) - and the potential lack of confidence and disquiet problems with software would cause with any election result.
My comment stands. Oddly, New Hampshire was able to conduct legitimate elections long before the advent of the internet. Why is that?