It'd have to be like the libertarian incompatibilists envision it: that free will gives everybody a capacity to, to some degree, be a first cause. From https:/

It'd have to be like the libertarian incompatibilists envision it: that free will gives everybody a capacity to, to some degree, be a first cause. From https://plato.stanford.edu/entries/incompatibilism-arguments/#TwoReasForThinFreeWillIncoDete https://plato.stanford.edu/entries/incompatibilism-arguments... "Free will…is the power of agents to be the ultimate creators or originators and sustainers of their own ends or purposes…when we trace the causal or explanatory chains of action back to their sources in the purposes of free agents, these causal chains must come to an end or terminate in the willings (choices, decisions, or efforts) of the agents, which cause or bring about their purposes. (Kane 1996: 4)" That might be metaphysical, but I don't see any other way free will could operate - that is, if it exists.