OS without the kernel
just thought you wanted to use the term OS in a way that people will understand you.
Saying OS without the kernel ... sounds to me like i want a sandwich without filling .... .
Next evolution will then be to use flatpak from within flatpak or what?
Is this a joke about para-virtualization? - anyway, i think flatpaks abstraction and isolations make sense. Not to much and not to little. Just enought to keep an application isolated from the basesystem while using portals to interact with necessary apis.