

You’re allowed to need some space. You may feel better if you say so, rather than ghosting.
Something like:
“Sorry I’ve been ignoring our friendship, I’ve needed some space. I want to still be your friend, long term, in honor of what we’ve shared. I might still be quiet for awhile, but I’m okay and I appreciate you.”
Friendships can go quiet for years and still be friendships, if both people don’t mind.
What language is the CLI written in?
Yes, running a CLI from inside a container can be a pain, but it’s not a big deal for the people asking.
I would just provide a trivial Dockerfile and see if anyone uses it.