The Krayvr editor open on a laptop, a clock widget being arranged on a screen's page

Krayvr Signage

Wayfinding and info terminals for hotels, composed like a home screen and changeable by an agent.

$50,000 / 3 months

MCP serveragent control over everything

PostgreSQL on Neon + Drizzledata layer

Better Authauthentication

Docker on Outplanedeployment

About this project

Hotels put wayfinding and info terminals in their lobbies and corridors, and whoever sets them up should not need a technician to change them. This is that system: the building is modelled as floors joined by lifts and stairwells, with rooms, doors and windows, so a guest can be routed from where they stand to where they are going across storeys, drawn in 3D. The hotelier composes each screen in a widget editor - pages, widgets, sizes - and it deploys live to the display. The whole architecture is MCP-backed, so everything the UI can do an agent can do too.

The challenge

The floor plan is the hard part. A building is not a map, it is a stack of maps joined by lifts and stairwells, and routing across that graph while keeping it something a hotelier can edit took the most work. Building MCP in from the start rather than bolting it on later forced every feature to have a real API behind it, which turned out to be the discipline that kept the UI honest.