Apart from Minio, we tried Garage and Ceph. I think there's definitely a need for something that interfaces using S3 API but is just a simple file system underneath, for local, testing and small scale deployments. Not sure that exists? Of course a lot of stuff is being bolted onto S3 and it's not as simple as it initially claimed to be.

SeaweedFS's new `weed mini` command[0] does a great job at that. Previously our most flakey tests in CI were due to MinIO sometimes not starting up properly, but with `weed mini` that was completely resolved.

[0]: https://github.com/seaweedfs/seaweedfs/wiki/Quick-Start-with...

> for local, testing and small scale deployments

Yes I'm looking for exactly that and unfortunately haven't found a solution.

Tried garage, but they require running a proxy for CORS, which makes signed browser uploads a practical impossibility for the development machine. I had no idea that such a simple popular scenario is in fact too exotic.

Minio started like that but they migrated away from it. It's just hard to keep it up once you start implementing advanced S3 features (versioning/legal hold, metadata etc.) and storage features (replication/erasure coding)

What about s3 stored in SQLite? https://github.com/seddonm1/s3ite

This was written to store many thousands of images for machine learning

From what I can gather, S3Proxy[1] can do this, but relies on a Java library that's no longer maintained[2], so not really much better.

I too think it would be great with a simple project that can serve S3 from filesystem, for local deployments that doesn't need balls to the walls performance.

[1]: https://github.com/gaul/s3proxy

[2]: https://jclouds.apache.org/

I've been looking into rclone which can serve s3 in a basic way https://rclone.org/commands/rclone_serve_s3/

Try versitygw.

I’m considering it for a production deployment, too. There’s much to be said for a system that doesn’t lock your data in to its custom storage format.

For testing, consider https://github.com/localstack/localstack