Rails 7 adds the ability to use pre-defined variants | BigBinary Blog

Rails 5.2 introduced ActiveStorage which made it possible to easily upload files to a cloud storage service like Amazon S3, Google Cloud Storage, or Microsoft Azure Storage. It also helped in attaching the files to active record objects.Using ActiveStorage and ImageMagick we can transform image uploads and extract metadata from files. For transforming image uploads we can use image_processing gem with ActiveStorage and create variants of an image.