I think even before that we need an API to tell us who voted for or against each bill, and their party affiliation.

Also an easy way to find all votes of each elected representative.

Then maybe an app that allows me to pick a few bills and a few representatives and produce a matrix of how they voted on those bills, also which proportion of each party voted yes or no on those bills.

And finally for each proposed bill who voted for or against to bring it onto the floor to be discussed and voted on, or not.