Libertarians and Source Compatibility

There are some libertarians who don't think it alternative possibilities are required. According to source alibertarians, the in order for us to be the appropriate sources of our behaviour, there has to be indeterminacy in the world at some point. It can't be that our actions are determined, causally, determined by factors beyond control. The ideas we can kind of accept the upshot of the frankfort sall cases and focus on what it means to be the proper source of our behavior such that we're responsible for it.