You could do either but forget 20yrs as happy said
Does texecom provide cloud services direct to the end user is a question , many companies don't and some that did don't anymore , that leaves you with real DIY gear like Yale
Because what would be the point of installing something you can't maintain
So perhaps investigate it, banham probably won't help you after but a local house basher may do a deal and hand over after a year and you just as and when you need him