Somehow Canada manages a manual pencil-check paper ballot They have counters from opposing sides witness the manual count. Works fine and is done very quickly, and it can be recounted at any time. No way to cheat. No electrons necessary. If you suspect one side has figured a way to infiltrate both witnessses, increase the number of counters. No limit on the number of eagle eyed buggers that can watch.
And addressing the 2000 fiasco, that was one party intentionally sandbagging the audit, dragging it out so that the Supreme Court could find a way to kill the recount. Hanging chads weren't the problem. It was hanging Republicans challenging everything and anything - there was no penalty for false challenges.