BTCPay connect to a Lightning node, internal or custom?

Support and Troubleshooting
1

Hello,
I setting up my BTCPay server running on Umbrel and when I want to connect the lightning node, I’m not sure if I should choose internal or custom. Will internal create a new node just for BTCPay or will it use the internal node created by Umbrel?
Alternatively can I use a LNHub invoice only URL generated by LNbits? (maybe I didn’t understood the whole concept here, sorry if it doesn’t make sense).

2

Questions for you to ask yourself:

  1. For what you need a BTCpay server?
  2. Do you have webshop open to public in clearnet?
  3. You want it only for donations?
  4. You want it only for learning how to use it?
3

I mostly want to learn how to use it and what are the possibilities. And yes my first practical use will be to use it for donation I guess. But I already setup LNbits and figure out how to make a donation permanent LNurl or on demand generated invoice, but I feel that the usage of LNhub is not so professional looking, so I want to compare with BTCPay.
I setup a reverse proxy for both BTCPay and LNbits so they are accessible from clearnet.

4

So, I take the risk and try myself. I select internal and test with a small payment and it arrives in my Umbrel LN wallet directly! So I guess it’s well prepared, very easy to setup!

5

Good job.
I would assume the external wallet is optional when you want to seperate both your node wallet to run / fund your channels vs the wallet holding the retail / crowdfunding flows. If you don’t need or want the seperation, because it’s your shop anyway, you can use the internal wallet and be fine.

6

Yes exactly, as BTCPay can manage multiple shop, you might have one shop on the same server as your node using the local node and another shop using a different external node. That’s what I understood. Also I guess that if you install BTCPay server manually on a server, it comes (optionally?) with a node and other tools like RTL or Thunderhub but the version for Umbrel did had these addons as it’s using the app from Umbrel already. If a dev can give more details (or if someone understood enough to look in the GitHub what’s going on) it would be interesting to know for us mortal non-coder.

Anyway I’m pleasantly surprise how easy and fast it is to deploy and use directly out of the box, good job Umbrel team and BTCPay team.

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