Visit the awesome guide from Geoff Rich to learn more.
You can also play around with the variables here to generate an image.
URL query string: https://ogimggen.vercel.app/?author=Author%20Name&img=https%3A%2F%2Fres.cloudinary.com%2Fdefkmsrpw%2Fimage%2Fupload%2Fv1578491966%2Fsocial%2Fspencee.png&website=website.comog?title=SvelteKit Open Graph Images&author=Author Name&website=website.com&img=https://res.cloudinary.com/defkmsrpw/image/upload/v1578491966/social/spencee.png
https://ogimggen.vercel.app/?author=Author%20Name&img=https%3A%2F%2Fres.cloudinary.com%2Fdefkmsrpw%2Fimage%2Fupload%2Fv1578491966%2Fsocial%2Fspencee.png&website=website.comog?title=SvelteKit Open Graph Images&author=Author Name&website=website.com&img=https://res.cloudinary.com/defkmsrpw/image/upload/v1578491966/social/spencee.png
This is the actual component with default props, fixed height and width: