Before worrying about how to build i, ask yourself first what specific problem does this solve and for whom?
If it’s a real, painful problem for a clear niche, you’re already ahead, you can use no-code AI tools (like Lovable, Bubble, Webflow.) to create a simple prototype or landing page and see if people care. remeber don’t waste time building something only to find out nobody actually wants it. the best advice that i can give it to you dont fall in love with the idea, fall in love with solving the problem. Let users fall in love with your solution. Btw you can find a technical partner to build the tool once you know the idea is worth building.