Ask HN: What can a IoT company do to deliver a user first product

I'm diving into an IoT project and I've been mulling over how to build and maintain trust with my future customers, especially in the long term. The dream is not just to launch a product but to create something that stands the test of time and changes in ownership, should it be acquired down the line. I'm all for transparency and am considering open-sourcing the cloud components right off the bat.

At the same time, I'm wondering what else I can do to reassure users that they won't be left in the lurch, regardless of how the project evolves or if it changes hands. Is there a framework or set of practices I could adopt or any documentation I could put in place from the get-go that might help ensure continuity and reliability for users?

As an aside, this would be a "medical" device to help unobtrusively keep track of loved ones.