I'm having insufferable analysis paralysis and I'm hoping ya'll can point me in the right (any!) direction! 
I'm a BI user at home, bought a cabin and just want to know if I closed all the dang doors at the cabin to appease my paranoia. Temp, water, motion sensors, smart door locks would be great - did I mention a garage is ~ 200' from the cabin (e.g. I'm assuming out of zwave range).
So I'm going to setup a local BI instance with cameras at the cabin because the camera quality there obviously exceeds Ring, Simplifi, Wyze and all that but... what do I do about door sensors? Just stick camera everywhere and be done with it? I'm trying to limit the mobile apps in play here, maybe having Ring and BI mobile isn't such a problem but if there is a way no to do it that's be awesome. Seems like it's either Ring + BI or <door smart lock> + BI at the very least. If that's the case - one approach recommended over the other?
Appreciate any input!

I'm a BI user at home, bought a cabin and just want to know if I closed all the dang doors at the cabin to appease my paranoia. Temp, water, motion sensors, smart door locks would be great - did I mention a garage is ~ 200' from the cabin (e.g. I'm assuming out of zwave range).
So I'm going to setup a local BI instance with cameras at the cabin because the camera quality there obviously exceeds Ring, Simplifi, Wyze and all that but... what do I do about door sensors? Just stick camera everywhere and be done with it? I'm trying to limit the mobile apps in play here, maybe having Ring and BI mobile isn't such a problem but if there is a way no to do it that's be awesome. Seems like it's either Ring + BI or <door smart lock> + BI at the very least. If that's the case - one approach recommended over the other?
Appreciate any input!