Reduce cert duration in staging to be able to test automatic renewal

I was wondering if you could change the certificate duration in staging to something short like 3 days or so, in order for clients implementer to be able to test auto renewal more easily ?
I’m currently running my own boulder instance for testing purpose, but it would be more convenient to be able to use staging instead.

I’m not sure I understand. There is nothing stopping you auto–renewing the certificates every 3 days on staging. I guess the only thing is how you determine that it’s time to renew. Set it to auto-renew when 87 days are left on the certificate and it should renew every 3 days.