I tried to use Eauth as an OAuth2 provider for a matrix-synapse homeserver, according to https://matrix-org.github.io/synapse/develop/openid.html.
It additionally requires jwks.json endpoint, e.g. jwks_uri: "https://accounts.example.com/.well-known/jwks.json", which is not present in this node-eauth-server.
I'm looking forward to implement a fix for this.