Pozole pregunta: does this dry hominy need to be prepared with Cal before cooking?

¡Lo siento! No sabo Chican@ here with NO nixtamal experience. 😝🤦🏻‍♀️

Bought these packs of dry hominy back in CA over the holidays, hoping to make pozole with it in Instant Pot.

Does it need to be boiled first with Cal? Or can I skip Cal, and follow these instructions before cooking pozole? (Link for Instant Pot prep instructions: https://www.dadcooksdinner.com/instant-pot-hominy-from-dried/)

Gracias for any help! 🙏🏼💕