What are the biggest challenges in Neobank application development?

[Prabu]

We're in the planning stage of Neobank application development and trying to understand the biggest technical and compliance challenges. Things like banking API integration, security, regulatory compliance, user onboarding, and scalability seem critical. I recently came across Techzarinfo while looking for development companies, but I'm interested in hearing real experiences from founders or product teams. What challenges did you face, and what should we plan for before starting development?