rsnext/examples/with-styled-components-rtl/pages/_document.tsx

import type { DocumentContext, DocumentInitialProps } from "next/document";
import Document from "next/document";
import { ServerStyleSheet, StyleSheetManager } from "styled-components";
import stylisRTLPlugin from "stylis-plugin-rtl";

export default class MyDocument extends Document {
  static async getInitialProps(
    ctx: DocumentContext,
  ): Promise<DocumentInitialProps> {
    const sheet = new ServerStyleSheet();
    const originalRenderPage = ctx.renderPage;

    try {
      ctx.renderPage = () =>
        originalRenderPage({
          enhanceApp: (App) => (props) =>
            sheet.collectStyles(
              <StyleSheetManager stylisPlugins={[stylisRTLPlugin]}>
                <App {...props} />
              </StyleSheetManager>,
            ),
        });

      const initialProps = await Document.getInitialProps(ctx);
      return {
        ...initialProps,
        styles: [initialProps.styles, sheet.getStyleElement()],
      };
    } finally {
      sheet.seal();
    }
  }
}