One approach: There are skeleton projects for each framework (Django, Node, etc.) that will take care of all this. One-time fee. You'll have to maintain it. Bu

One approach: There are skeleton projects for each framework (Django, Node, etc.) that will take care of all this. One-time fee. You'll have to maintain it. But it's great to get started. Basically, search for "saas boilerplate" or "saas skeleton".