[WIP] Refactored kernel structure

Refactored kernel structure.

__Tasks:__

- [ ] test coverage
- [ ] gather feedback for my changes
- [ ] submit changes to the documentation

__Informations:__

| Q             | A
| ------------- | ---
| Tests pass?   | no
| Fixed tickets | -
| Doc           | -
We can make "context" a kernel parameter that willl automatically be available in the dependency injection container. I believe.