Why start at the desk
The desk is the easiest place to test NFC because the routine is stable and repeatable. You sit down, place devices, launch a few apps, and move into focus mode.
What this system should do
A simple desk NFC system should launch the exact things you repeat most often: a focus state, a timer, a playlist, a task app, or a Home scene.
Hardware to buy first
Start with a basic NFC sticker pack and one charging anchor. That is enough to validate whether the workflow saves time before you buy rings, cards, or more decorative accessories.
Keep it small
The right first version is one useful tap, not a giant automation tree. Once the desk version works, branch the same logic into travel, bedroom, or home-entry routines.