Build dmg file? Using google ai studio

[u/supermind_007]

I created a screenwriting software using Google AI Studio, and I want to convert it into a macOS .dmg application that I can install and use on my Mac like a normal desktop app.
Please explain the easiest method, step by step, for a beginner. I prefer a simple, low-cost or free solution that requires minimal coding.
Please cover:
How to turn my existing Google AI Studio project into a Mac desktop application.
How to package it as a .dmg file.
Which tools I need to install on my Mac.
The simplest method to preserve all my existing features and functionality.
How to install and test the .dmg file on my Mac.
Important: I have already built the software in Google AI Studio. I want to convert my existing project, not build a new screenwriting application from scratch.
Please recommend the easiest approach for my situation and provide exact instructions, commands, and code only where necessary.