Yes, you should use Flusk especially if you're using them!
Our tool is designed to work even if you're using an external backend or database, such as Xano or Supabase.
But using a custom backend can create numerous data security vulnerabilities, because they are normally managed natively by Bubble.
API calls to/from your external backend
API tokens
Data leaks
These security vulnerabilities can occurs when using an external backend, but Flusk can help detecting these issues.