First you need to create your application:

mint init your-application
cd your-application

Then add mint-ui to the mint.json file as a dependency.

"dependencies": {
  "mint-ui": {
    "repository": "https://github.com/mint-lang/mint-ui",
    "constraint": "8.0.0 <= v < 9.0.0"
  }
}

Finally run mint install to get the dependencies:

mint install

You should see something like this:

Mint - Installing dependencies
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚙ Constructing dependency tree...
  ✔ Cloned mint-ui(https://github.com/mint-lang/mint-ui)
  ✔ Cloned mint-color(https://github.com/mint-lang/mint-color)

⚙ Resolving dependency tree...
  ◈ mint-ui ➔ 8.0.0
  ◈ mint-color ➔ 0.9.0

⚙ Copying packages...
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
All done in 2.387s!

That’s it! You’re now ready to use Mint UI in your application.