Cascade uses uploadthing as its file upload tool of choice. Uploadthing is a simple file uploader that allows you to upload files to your cloud storage.
You need to add UPLOADTHING_APP_ID & UPLOADTHING_SECRET to your .env file to use Uploadthing features if you clone Cascade.
Cascade uses awesome work of Sadman Sakib to make file uploads easy. The implementation combines react-dropzone & shadcn/ui components to make the whole process as simple as possible.