Sensors
The tools can stay
You don't have to migrate into another app. The apps become things the World can read.
The usual pitch is: move everything into our system. New login. New place to live. Twenty years of that is how you got here.
The inversion is quieter. Keep the tools that already work. They are not the rooms you inhabit. They are how a World notices what is already going on — a calendar, a mailbox, a board — without becoming the place you have to return to.
Nothing here is asking you to rip anything out. If a World is doing its job, you should be able to change a tool later and keep the meaning.
These pages explain the public story. They are not the live World, and they are not a product tour.