 Okay. And you basically just create an account. Then you would invite all your Facebook group members to head over to Substack to go ahead and make their donation for their monthly Bible lesson. And then you just send out your PDFs to your paid subscribers. And that's probably the easiest way. There's a couple of other ways you can do it, like Patreon and also through MailChimp. But I think for your purposes, Substack would be what it'd be.