unleash.unleash/website/src/theme/prism-include-languages.js

import siteConfig from '@generated/docusaurus.config';
export default function prismIncludeLanguages(PrismObject) {
    const {
        themeConfig: { prism },
    } = siteConfig;
    const { additionalLanguages } = prism;
    // Prism components work on the Prism instance on the window, while prism-
    // react-renderer uses its own Prism instance. We temporarily mount the
    // instance onto window, import components to enhance it, then remove it to
    // avoid polluting global namespace.
    // You can mutate PrismObject: registering plugins, deleting languages... As
    // long as you don't re-assign it
    globalThis.Prism = PrismObject;
    additionalLanguages.forEach((lang) => {
        // eslint-disable-next-line global-require, import/no-dynamic-require
        require(`prismjs/components/prism-${lang}`);
    });

    require('prism-svelte');

    delete globalThis.Prism;
}