I'm Tony with Cosmic. I built this Cosmic Message App (https://github.com/cosmicjs/cosmic-message-app) to show how to use Next.js, React Server Actions, and Cosmic CMS to build a simple app to add text and upload media to a message feed. All without exposing any API keys to the client.

I found the development process pretty straightforward using Next.js, Cosmic JavaScript SDK, File Upload Block, and React Server Actions.

Overall I'm optimistic about this stack to make building user generated content apps like this, much easier.

Let me know what you think in the comments.

Tony