How to install LND only? Next steps? Debug log included

Did you ever deposited some sats in that node?
Do you know how a LN node function?
Did you ever read the Umbrel get starting guide?
Did you ever read the Guides section of this forum ? We put there tons of links and documentation to be read, so you do not have to end in this frustrated situation. There’s a dedicated post only with links, videos, articles, documentation, tutorials etc all about nodes.