Hi guys! Can you share if how can I implement this on NextJS?

- code signing
- sandboxing (MentalJS)
- sanitization (DOMPurify)
- <iframe> with sandbox attribute
- Subresource integrity, Checksums or other integrity protections

Also, is there other way to secure file upload other than file size,types, validation? Coz casa wants to add antivirus but cant afford it :<