whereami: An In-Transit Location Screen
whereami is a web service by Ethan Cho, presented as a way to check your current location while riding a bus or subway. Its landing page addresses Seoul Metro and Seoul city bus riders specifically.
The starting question
Instead of a full transit app, can a single screen show only the location information a rider needs while moving?
Approach
The interface is built around one narrow use case, showing location-related guidance framed for Seoul subway and bus riders rather than full trip planning or ticketing.
Public artifact
The public page is live at whereami-flame.vercel.app and can be opened directly; this description reflects what was observable there on September 16, 2026.
Limits and what is not verified
The on-device claim is page copy, not something verified here at the code level. GPS accuracy and coverage vary by device and environment, and no field test of real transit use was performed.