@mykepredko
Regarding klipper-repl.
I read the post from unjordy, when he posted it Announcing klipper-repl: the missing Klipper command line and was very pleased. But, I never tried it.
Since the sources are quite old (latest from Jun 12, 2023) and Klipper, Moonraker and Fluidd moved on, I imagine there could be problems with klipper-repl and an actual Klipper release.
When you look at the issues GitHub · Where software is built, flowerysong seems to use it.
You could write to unjordy and flowerysong asking for help here in discourse. flowerysong should be definitely reachable here at discourse (his last post is from May 19, 2025).