Hello! I am a student from Romania and I need your opinion on my web project

Hi everyone! I’m a student from Romania currently developing PLI 7, an AI-driven tool built with Next.js and the Gemini model.

While many AI wrappers rely on rigid, pre-built cloud solutions, I decided to architect my own backend from the ground up. My goal was to move beyond the limitations of standard "out-of-the-box" integrations to ensure maximum stability, lower latency, and more precise control over how the AI responds.

I’m at a stage where I’d love some peer review from the people community. Specifically:

Architecture & Logic: Does a custom backend approach for Gemini-based tools offer the advantages I’m aiming for (stability/speed), or are there hidden pitfalls I should watch out for?

UI/UX Evaluation: How does the interface feel? Is the flow intuitive for a tool of this nature?

Vision: Does this "sovereign backend" approach make sense for a modern AI tool, or is the industry moving elsewhere?

Live Project: https://pli7.vercel.app/

I’m open to any and all technical critiques, suggestions for the stack, or ideas on features. Thanks for your time!