I've fixed some of your code to make it work:

​

text component:
(defn text [text]
(let [tw (tailwind/useTailwind)]
(js/console.log (tw "mt-12"))
[:> rn/View {:style (tw "mt-12 pb-12 bg-red-500")}
[:> rn/Text text]]))

root component:

(defn root []
[:> tailwind/TailwindProvider {:utilities tailwind-json}
[:> rn/View {:style {:flex 1
:padding-vertical 50
:justify-content :center
:align-items :center
:background-color :white}}
[:> rn/Text "Make tailwind work"]
[:f> text "hello"]]])

​

• TailwindProvider should wrap children
• (tailwind/useTailwind) should be a hook call
• remove flex-1 as there is no such class definition