@Sylvhem I worked a lot on a project called MirageOS, which instead wants to pull in only the bits of an operating system that you say an application needs, then run the resulting thing directly on a hypervisor (instead of sharing a kernel as containers/jails/&c do).

In that world everything is a library and you compile everything into one artifact before deploying, so a lot of pain from package managers, dependencies, etc goes away from the deployment side (although still exists on the development/building side, unfortunately).

I want a future more like that, where I only get a filesystem if I need it, & can use a nicer API to talk with it :)