Vite is much simpler to use than Next.js and we don't need any of the
features Next has that Vite doesn't have.
Benefits of moving to Vite are:
- Much better performance in dev and prod environments
- Much better build times
- Actual support for static exports, no vendor lock-in of having to use
Vercel
- Support for runtime environment variables/loading config from `.env`
files
- No annoying backwards-incompatible changes on major releases of Next
- Better i18n support without having to define getServerSideProps on
every page
- Better bundle optimization
- No opt-out Vercel telemetry
Also replaces yarn by pnpm and upgrades mantine to 8.3
Fix a broken link in `docs/content/deployment/index.mdx`, make all links
absolute for clarity and fix the command to start docs in
process-compose-example.yml
