Eying NOS3 potentially for my client (for game mods)
If you want Something for right now, alienos is a great option with a good support of both disk and s3 storages:
https://github.com/dezh-tech/alienos
If you wanted an scalable and high performance one, wait for:
https://github.com/dezh-tech/nos3
In next few months beta version would be available.
Discussion
Nice. It would support software checks to detect malwares and more as well. 🫡