Add offline desktop mac app built with tauri!

I recently started learning tauri to let people run my HTML/CSS/JS code as a desktop app, but also I've been thinking ahead to how I could publish browser-based games on Steam in the future - apparently exporting with Electron would enable me to do that, but I think Tauri does it better, especially considering that I want to avoid making people using mobiles devices wait unnecessarily for a long download for even simple apps/games.

Here's my GitHub repo where I keep my notes and quick references for remembering how to use tauri:
https://github.com/hchiam/learning-tauri