Awesome idea, great implementation as well -- nice and light and easy for me to pop in and use. Have you considered adding in https://coolbackgrounds.io/ ? For my projects recently my flow has basically been to put pick a cool background, and the company/project logo in the middle and call it a day. Ahh also being able to add a logo would be great too -- no need to do upload stuff, could just convert the image to a data URL and and display it.

Hey Hunters and Makers 👋 I'm Vadivazhagan, creator of opengrph. It's free and open source tool which will help you create beautiful cover & open images for your blogs, video. I would love to get your feedback and suggestions ❤️

Nice app, I want to try it.