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

SpiceDB

How would conditional access work in authzed? Here is an example of the policy schema
policy {
       policy-bindings: []
}

policy-bindings {
        principals : {
                users: [],
                groups: []
        },
        role: role-id,
        conditions {
                locations :  [ 
                      { location <logical-operatorn>  location-name}
               },
                time-interval  <logical-expression> start-time and end-time
        }
}