You can keep your media in Cloudflare R2 by pointing Litestore's S3 client at your R2 endpoint.
Litestore stores your product images and other media in an S3 bucket, and AWS is the default.
You can run MinIO on your own servers and have Litestore store your media there through the S3 API.
Litestore sends every email through Resend, including the magic links that everyone uses to sign in.
The guide explains every value you set and what Litestore does with it.