What are the income requirements for Italy’s digital nomad visa?

I’ve read that applicants must have 8,400 euros in funds to be eligible, but what are the income requirements? For how many years is it renewable?

Answers

On Alessia Ajelli answered:

As of now, we are still waiting for the decree to implement the digital nomad visa into Italian immigration law by setting the requirements (among which the ones related to income) and the procedure for its obtainment and renewal.

On Marco Mazzeschi answered:

As of now, we are still waiting for the decree to implement the digital nomad visa into Italian immigration law by setting the requirements (among which the ones related to income) and the procedure for its obtainment and renewal.