"Just use a VM/container/jail/dedicated machine" is a great solution to any problem except, now you have n+1 problems. I am a huge fan of functional/declarative

"Just use a VM/container/jail/dedicated machine" is a great solution to any problem except, now you have n+1 problems. I am a huge fan of functional/declarative environments, hence NixOS, but these approaches have limitations. General purpose computing's attraction isn't emulating single purpose microcontrollers...