The EU Settlement Scheme appears to be the mechanism for EU nationals (and EEA nationals I think) to register with the UK Government so that they have a distinct set of requirements for being permitted to remain resident in the UK (and potentially, ultimately apply for citizenship).
Is this scheme dependent on the passing of the European Union (Withdrawal Agreement) Act, or is it a separate scheme decided unilaterally by the UK that will come into effect even in a no-deal scenario?