YAGNI. You can get to a 90% solution today at 10% of the cost and effort. If, later, you want to extend the system you’ll not only have learned a lot about the

YAGNI. You can get to a 90% solution today at 10% of the cost and effort. If, later, you want to extend the system you’ll not only have learned a lot about the operations and failure modes of the current system, but hardware purchased later will be cheaper and may support even more functionality.