Essentially you just need to paste the embed snippet into the code block type when creating sections in the SquareSpace editor.
Step 1. Create a new code block in the area you would like to embed the ticket form.
Step. 2. Paste your snippet from Backstage > Integrations options.
Step. 3. Save and position accordingly.
Using the SquareSpace content blocks you may need to add or remove spacers to center or align accordingly. Our embed snippet is responsive so making it larger or smaller is supported but should be done with the site layout.