Bitcoin+LND+BTCPayServer+haproxy/nginx is enough for this to work
Discussion
I used to use BTCPay server but Zaps were not working. And why would you not use Cloudflare to hide your home IP address? 🤔
Zaps now work in btcpayserver. You can also do prisms (split payments) which is mind boggling. Cloudfare sure if you want to hiden IP, but comes at a cost of less simplicity.