[drdaeman]

Unfortunately, that's also the story of how Internet of Things (well-known by other nouns) was born.

This works perfectly well for non-so-smart stuff (thermostats, automatic cat doors, etc etc) but when you increase complexity (smart home system) you need engineers with higher qualifications and better expertise. And that's expensive (unless someone volunteers and works for pennies, but that quickly gets stressful - literally not worth it).

(Not like off-the-shelf solutions are any better. They were also born that way - by lowest spending necessary.)