Interesting.

And you can even use the cool Bolt Cards to pay in your store if you're using OpenNode, as they added support for lnurl-withdrawals!

If you're only accepting Bitcoin, then probably BTCPayServer might be a better option because OpenNode charges a flat 1% for all incoming Bitcoin transactions, but this service allows payments to be done with credit cards in any currency, and you receive BTC directly, without having to deal with any conversion for tax purposes. I assume you have to pay the credit card fees and that the exchange is done fairly.

Also they seem to have free on-chain (scheduled weekly) and lightning(on-demand) withdrawals.

This looks like a great way to add multiple payment methods, including Bitcoin.