Hey, On my Umbrel it includes Bitcoin Knots in the suggestions when asked if you want to setup Lightning - it doesn't require Core. A few things to look into: Did you already switch over to Knots? Is your Umbrel up to date?

Replies (1)

Umbrel up to date. Currently the lightning ⚡ node is still connected to Core. I've added Knots, waiting until indexing is finished. I guess that I simply need to point to knots from the umbrel app shop. While preserving all channels and settings on my lightning. Right?