I am running a live technical project running kanban. There is only one developer on board and he is moonlighting to do it. The difficulty that I have is that the client is demanding more and more work to be done causing the developer a lot of stress since he can't keep up. Given a lack of company resources i.e. we cannot afford to hire somebody full time. As well as the fact that are a lot of the deliverables are post launch deliverables.I am stuck with this developer.
What is the best way to deliver projects in this situation where a lack of resources is affecting your ability to deliver the project on time, or recruit additional resources.