Step-by-Step Guide: Embedding Sketchfab Models on Hackster.io
Copy Your Model URL
Go to your model page on Sketchfab and copy the web address (URL) from your browser's address bar.
Navigate to Attachments
Open your project in the Hackster.io editor.
Scroll down to the Attachments section and locate CAD.
Under the Attachments > CAD section, click the Link existing repository button
Paste your Sketchfab model URL in the Repository Link field.
Save changes and you're good to go.