Use a copy of the CSV template. In Google Sheets choose File > Share > Publish to web, pick Entire document, click Publish and paste the link here. Get the template tabs.
The Brand Kit and Website tabs refer to these files by name (for example logo-linear.png). Upload a folder from your computer, or link a Google Drive folder.
logo-linear.png
Drop a folder or files here
To serve this event at its own domain, add the domain here, then add it under Custom domains on the Cloudflare Pages project.