[RaitoBezarius]

I definitely not believe that Docker images are boring, they are full of constant issues and stuff you have to keep track on the top of the fact they are not composable in many ways.

Rootfs is the boring technology, their semantics is clear and most kernels have support for them.

Better: use systemd which has became truly boring and restarts your services automatically and if you don't like systems, plenty of alternatives such as s6 do exist.