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That's the problem with using a platform like that I guess. :-P

You could make your own website and add coin payments onto it to accept crypto.

My stores use Wordpress and WooCommerce, but you could also use one of these: https://www.coinpayments.net/merchant-tools-plugins

I think aMember and Easy Digital Downloads could be used to host courses, but I'm not entirely sure. It might be worth looking into though.