SpiceDB is an open source, Google Zanzibar-inspired, database system for creating and managing security-critical application permissions.

SpiceDB

```
SPICEDB_GRPC_PRESHARED_KEY='Y24Nfiquc5W77EgY7eQTQITmvMfy0Q2sjhNrx56UBuyPsbAY5tSdPKOeRvX4OrEw' SPICEDB_GRPC_NO_TLS=true SPICEDB_HTTP_NO_TLS=true spicedb serve

zed schema read --endpoint localhost:50051 --insecure --token 'Y24Nfiquc5W77EgY7eQTQITmvMfy0Q2sjhNrx56UBuyPsbAY5tSdPKOeRvX4OrEw'
Error: rpc error: code = NotFound desc = No schema has been defined; please call WriteSchema to start
```