the-biergarten-app/src/Website/.storybook/main.ts

import type { StorybookConfig } from "@storybook/react-vite";

const config: StorybookConfig = {
  stories: [
    "../stories/Configure.mdx",
    "../stories/SubmitButton.stories.tsx",
    "../stories/FormField.stories.tsx",
    "../stories/Navbar.stories.tsx",
    "../stories/Themes.stories.tsx",
  ],
  addons: [
    "@chromatic-com/storybook",
    "@storybook/addon-vitest",
    "@storybook/addon-a11y",
    "@storybook/addon-docs",
    "@storybook/addon-onboarding",
  ],
  framework: "@storybook/react-vite",
  async viteFinal(config) {
    config.plugins = (config.plugins ?? []).filter((plugin) => {
      if (!plugin) {
        return true;
      }

      const pluginName = typeof plugin === "object" && "name" in plugin ? plugin.name : "";
      return !pluginName.startsWith("react-router");
    });

    config.build ??= {};
    config.build.rollupOptions ??= {};

    const previousOnWarn = config.build.rollupOptions.onwarn;
    config.build.rollupOptions.onwarn = (warning, warn) => {
      if (warning.code === "MODULE_LEVEL_DIRECTIVE") {
        return;
      }

      if (typeof previousOnWarn === "function") {
        previousOnWarn(warning, warn);
        return;
      }

      warn(warning);
    };

    return config;
  },
};
export default config;