What’s the Best Tech Stack for Building Scalable Web Apps in 2025?

Hey everyone,
I’ve been exploring different tech stacks for building modern and scalable web applications, and I’d love to hear your thoughts. What combination of frontend, backend, and database technologies are you currently using or recommending in 2025?

I’m especially interested in what works best for performance, security, and long-term maintenance. Let’s start a discussion — share your experiences, preferred stacks, and lessons learned!