[selfmodruntime]

> It's a wrapper around linux and a middle between my OS and my app

No. Docker doesn't "wrap" anything, and it certainly does not wrap Linux. Please reconsider looking at the documentation. It uses native kernel features. SystemD does a similar thing.

> For example Docker complexity - you need to learn a new filetype, a new set of commands, a new architecture, new configurations, spend hours reading another set of documentation

I can't say I agree.