The videos are helpful & they are a worthy addition in the sub forum if only for background purposes..
A proper sdk has always been a prerequisite for the ps4 homebrew scene to take off, as the sdk capabilities keeps growing, let us hope that eventually more & more devs will be interested in making new ps4 homebrew..
I suppose the ps4 sdk will also give rise to a ps5 sdk with the same kind of framework, that would be quite nice.