Currently you don't support virtual host style endpoints for buckets, as the library opendal supports it but since its not exposed/set in sccache its always defaulting to path based.

https://github.com/apache/opendal/blob/0e41a17e0b5535a67d7e89bca7d6cba142c1fffe/core/src/services/s3/config.rs#L150-L155 related code.