Can't get addPasskey() working

import { betterAuth } from "better-auth";
import { passkey } from "better-auth/plugins";
import { drizzleAdapter } from "better-auth/adapters/drizzle";
import { db } from "./db/index";
import { env } from "$env/dynamic/private";

export const auth = betterAuth({
    database: drizzleAdapter(db, {
        provider: "pg",
    }),
    baseURL: env.PUBLIC_BETTER_AUTH_URL,
    secret: env.BETTER_AUTH_SECRET,
    emailAndPassword: {  
        enabled: true,
        autoSignIn: false
    },
    plugins: [ 
        passkey({
            rpID: 'bdadmin',
            rpName: 'BD Admin',
            origin: env.PUBLIC_BETTER_AUTH_URL
        }), 
    ],
    session: {
        modelName: "bda_sessions",
        expiresIn: 60 * 15, // 15 minutes
        updateAge: 60 * 5 // every 5 mins the session expiration is updated
    },
    user: {
        modelName: "bda_users"
    },
    account: {
        modelName: "bda_accounts"
    },
    verification: {
        modelName: "bda_verifications"
    }
});

import { createAuthClient } from "better-auth/svelte";
import { passkeyClient } from "better-auth/client/plugins";
import { env } from '$env/dynamic/public';
export const authClient = createAuthClient({
  baseURL: env.PUBLIC_BETTER_AUTH_URL,
  plugins: [ 
    passkeyClient()
  ]
});