Litestore runs its background work on Inngest, from queued email and webhook delivery to its scheduled jobs.
Litestore stores your product images and other media in an S3 bucket, and AWS is the default.
You can keep your media in Cloudflare R2 by pointing Litestore's S3 client at your R2 endpoint.
You can run MinIO on your own servers and have Litestore store your media there through the S3 API.
The guide explains every value you set and what Litestore does with it.