Use case: I have a robot that is sometimes Internet-denied, and I want to use Foxglove Studio as the UI into this robot. I have one or more layouts that I have created specifically tailored to this robot and exported as JSON. I want to host the web version of Studio running on my robot, and when anyone visits https://myrobot.local/ Studio loads with one of my layouts and automatically connects to my robot's data source (for example rosbridge at wss://myrobot.local:9090). Optionally, other layouts are available to switch to as well.
Under the hood this could be implemented with a redirect from https://myrobot.local/ to https://myrobot.local/foxglove/?layout_url=...&data_source=... or something to that effect.