The Signicat Identity Broker can interface with any Identity Provider/eID system.
Interfacing with an eID system involves uploading the metadata, then configuring the IdP and protocol options in the Signicat Identity Broker.
The only condition is that the Signicat Identity Broker supports the protocol used by the system in question. Any system that adheres to the basic SAML or OIDC protocol presents no problem.
If a system departs from the protocol, it’s necessary to find out whether the non-standard aspects are already supported, or whether adaptation is required.