monorepo/apps/web2/src/app/_components/auth/signin-button.tsx

import { signIn } from '@/auth';

export function SignIn() {
    return (
        <form
            action={async () => {
                'use server';

                await signIn('github', { redirectTo: '/dashboard' });
            }}
        >
            <button type="submit">Sign in</button>
        </form>
    );
}