The package has been configured successfully. The mercure configuration stored inside config/mercure.ts file relies on the following environment variables and hence we recommend validating them.
Open the env.ts file and paste the following code inside the Env.rules object.
MERCURE_ENDPOINT: Env.schema.string(),
MERCURE_ADMIN_JWT: Env.schema.string(),
MERCURE_JWT_SECRET: Env.schema.string(),