Opt for ZIP installation if you're planning to build your storefront in the theme editor, but note that it won't provide full source code access.
Download the theme ZIP from your order confirmation or customer portal.
In your Shopify admin, go to Online Store → Themes.
Click Add theme → Upload zip file and select the downloaded file.
Click Publish when ready to go live.
Activate your license
When the theme loads for the first time, it will prompt you to enter your license key. Enter the key from your order confirmation or customer portal. This activates and assigns the license to this store.
If you later switch to GitHub-based development, follow Install from GitHub—fork the repository first, then clone your fork.
Start by connecting your source repository and choosing the pages you want to publish.
You can then browse your documentation and ask questions about the content your team has shared.