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What's the difference?

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All stages · Demo 93

Fence

Choice the city from a closed set. Haversine against the warehouse pin is Math. Jev does not do spherical trig.

ChoiceGeofence in code

Two pins on a dark map. Inside 25 km is `d < 25000`.

replaycity —km in JS

STANDBY

All 4056 stages

Educational stage on jev.page — not the official TypeSafe console. Live calls go to POST https://api.typesafe.ai/v1/systemone from your browser when you paste a key. Without a key, the stage plays a recorded decision shaped like jev-1.13.0. Jev does not write the UI copy.