1. Bootstrap Next.js with `create-next-app` in a temporary subfolder
2. Install Prettier and add a `.prettierrc`
3. Migrate `public/`, `components/`, `constants/`, `helpers/` and `styles/` folders
4. Migrate `public/index.html` template to `pages/index.js`
5. Remove `<noscript>` fallbacks
6. Migrate fetching logic from stateful components to `getStaticProps()`
7. Remove CORS proxies
8. Update `package.json` scripts for building with `next export` (SSG)
9. Update `.gitlab.ci.yml`
10. Replace root contents (CRA) with those of the subfolder (Next.js)