npm install @mynaui/icons-react

import { LetterJSolid } from "@mynaui/icons-react";

const App = () => {
  return <LetterJSolid />;
};

<svg width="24" height="24" fill="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg">
  <path d='M15.25 6a1 1 0 0 0-1 1v7.5a1.5 1.5 0 0 1-1.5 1.5H11.5a1.5 1.5 0 0 1-1.5-1.5 1 1 0 1 0-2 0 3.5 3.5 0 0 0 3.5 3.5h1.25a3.5 3.5 0 0 0 3.5-3.5V7a1 1 0 0 0-1-1'/>
</svg>

<img loading="lazy" decoding="async" src="https://unpkg.com/@mynaui/icons/icons-solid/letter-j.svg" />

npm install @mynaui/icons

<svg width="24" height="24" fill="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><use xlink:href="/path/to/mynaui-solid.symbol.svg#mynaui-letter-j"></use>
</svg>