Agreed - my intention is definitely not "harness on every server" and more "make it easy for the backend half of harness to run on your personal dev box". This just comes from my experience at BigTechCorp where all of the engineers (myself included) used beefy EC2 instances for development (so tests ran fast, lol) and VSCode remote to actually edit files

I've just installed a raspbery pi zero w/limited memory, and having to constantly correct the local model because it can't ssh correctly is annoying; but I can't install any kind of harness on it.

Being able to just keep a single instance and only worry about transport protocols would be a bonus.