More remotes for local testing: SeaweedFS via `S3` or `WebDAV`?

I am working on a new distributed, fault‑tolerant virtual backend for rclone (raid3). For testing I currently use the local backend and MinIO instances (via the S3 backend) running in containers. I would like to add more remotes that I can run and control locally.

SeaweedFS looks promising. I could test it via the S3 backend (similar to MinIO), or via the WebDAV backend (which I have not used yet and which would broaden the coverage of protocols and feature sets).

Do you have any recommendations or experiences with SeaweedFS (S3 vs WebDAV) or other self‑hosted remotes that are useful for backend development and testing, especially for a virtual backend like raid3?

how about a sftp server, very different than S3.

one advantage of testing sftp over webdav, is that sftp support checksums.
rclone serve sftp

tho, there are some webdav servers that support checksums.

True, I'm gonna check.

atmoz/sftp works great, thanx asdffdsa.