Can you switch to eVisa before collecting your first BRP?

Just wanted to ask a question about the eVisa rollout. I'm applying for a skilled worker visa and soon (hopefully) will collect my BRP.

Does anyone know if its possible to just apply for the eVisa using my passport details, before even collecting the BRP?

Or would you just collect the BRP first then switch over the eVisa?

(apologies if this was a stupid question)