Custom Core and Supervisor in HA OS

Hello there,
I have a fork HA Core project and i want to customize it.Some custom components,initialization and templates at first.
After that i would like to use it with home assistant supervisor [to have access to add-ons also] and integrated with Home Assistant OS.
The final goal is to have an OS installation with my custom core,supervisor and os.
Is that possible?
how can i achieve that?