Did some testing with lnd backend.
Worked fine👍
Just a little issue with an update (linux permissions) but I got it solved.
I would like to use it as a redundant productive ldk node in parallel to existing structure (no connection between both nodes).
But I would like to know more of the cons of running a #ldk backend on a raspberry and a detailed description how a restore process (and prior backups) looks like if the ldk node crashes.