Because it uses Lnbits in the backend, you can even attach your own Lnbits & node. 

However, there are also some differences, such as a custom marketplace extension and some more changes. 

I also tried to keep the experience simple. It's also running on good hardware. 

 I created 2 paywall links:

https://pay.zapit.live/paywall/6daQASqQJgVDE6XGwgTr5R
https://pay.zapit.live/paywall/iaLK3K7cDSfqkMN5orzVAU

But after loading the Paywall extensions, it is reporting duplicates.

https://m.primal.net/HQZA.png 

 Thanks for reporting, I will look into it.