https://www.navalnews.com/naval-news/2022/01/bringing-hypersonic-missiles-to-the-fleet-a-case-study-analysis/

To the less military-brained folk here, the concept is to take land-based missile launcher trailer and plops them on the deck of the ships.

This would be like if you have a warship with no gun so you just park a tank on the deck to make it up.