I traveled my state advocating open source software. I called it "citizen owned software). It's a slum dunk with voters (tax payers). And it's how things used to be.
The gatekeepers (blockers) are the election admins who outsource to their cronies. They even invent make-work just to have more cheddar for their cronies. Like signature verification and ballot tracking.
Returning to paper ballots means less cheddar for cronies. Happily there's a workaround. Postal balloting (close the poll sites)!
Ballots are digitally scanned as they're received at central count. So it has all the downsides of the touchscreens with all new vulnerabilities (undetectable alterations, signature mismatches, preview election counts, voter coercion...). But voters get the comfort of paper and it keeps the cheddar flowing for the cronies.