Yes, but make all the interface available via Nostr calls so that any client can operate the service without having to go to the service's website. For instance, an Amethyst user should be able to sign up for an account and/or call "Recompute my web of trust" from the client. Than any WoT provider can follow the interface and on Amethyst we can just make a screen to pick a provider just like users pick a wallet provider today.