Custom Ai Sites/Admin Dashboard at Scale

I see a lot of people jumping ship from platforms into a AI built system where they build their own ecosystem/platform per set of low cost hosting.

But, I haven't seen anyone actually so this at true heavy scale with security and proper tracker and dashboard logins.

I only ask, as we build on a platform, Duda, but at a high rate (15-25/sites a month). So I'm looking for that next evolution of technology to walk our clients into that's win-win. Not necessarily from a cost savings standpoint, but from a visual or capability standpoint.

Anyone who is an expert in taking those next leaps of a fully ecosystem for clients to log into and enjoy other capabilities?