If you just want a paywall for a digital item you could use:

bitcoin_beginners

Video tutorial - Electrum LN

DarthCoin

If you just want a paywall for a digital item you could use:
- https://shopstr.store/
- https://darthcoin.substack.com/p/lnbits-nostr-market
- [P2P marketplaces with bitcoin](https://darth-coin.github.io/beginner/buy-bitcoin-en.html#p2p-marketplaces)
- [BTCpay](https://wordpress.org/plugins/btcpay-greenfield-for-woocommerce/) and [LNbits](https://wordpress.com/es/plugins/lightning-payment-gateway-lnbits) and [Alby](https://blog.getalby.com/lightning-on-wordpress-with-the-alby-plugin/) and many other solutions are offering Wordpress plugins and paywalls for digital items.