Thanks for your interest, let me how you get on!

Here is the explanation of the NIM to BTC LN bridge, including some details of how it works under the hood. If you wanted to get hands-on, you could get your hands on some NIM and try sending it to your Alby wallet. DM me and I will send you some NIM to your Nimiq Pay app! https://www.nimiq.com/blog/pay-with-nim-everywhere-lightning-network-is-accepted/