Because the US has no national voting system, and because there are over 4600 voting jurisdictions in the US, and because the mechanics and rules and procedures

Because the US has no national voting system, and because there are over 4600 voting jurisdictions in the US, and because the mechanics and rules and procedures around voting are left to the states and local municipalities, it seems to me that if someone put code up on github that could theoretically enable secure, anonymous online voting, and then, if a certain voting jurisdiction were interested, they could set it up for their voters and offer it as an option to them. Seems that some plucky voting jurisdictions needs to just try it out. It seems like a big problem, but it's not really, it's just about getting a few jurisdictions that rely heavily on absentee ballots to offer an online option, one that is secure and implemented in a transparent way.