Edge BlockTrain

The offline companion app for the 9-hour Edge BlockTrain from Margao to Mumbai (1 Nov 2026).

node server.js   # http://localhost:8787 — PWA + MCP endpoint at POST /mcp

How the timing works

The plan follows the track, not the clock. Signal zones come from a field log of the Konkan route (coverage dashboard) and are mapped to km from Madgaon in data.js. The app works out where the train is from GPS (which works without internet), snaps the fix to the line, and shows the current block, the signal class and a countdown to the next signal change. Without GPS it uses the planned time plus a "running late" offset.

Planned	Signal	Block
15:00–17:15	Good (patchy near Pernem)	All aboard, Build Sprint 1
17:15–18:51	Dead belt, Nandgaon → Ratnagiri	Orient Express starts, Imposter, sunset cacao with Zoe, Mafia 1
18:51–19:00	Ratnagiri burst	Sync window: push everything
19:00–20:52	Karbude tunnel, then patchy to Khed	Tunnel story, dinner + quiz, Mafia 2, bingo
20:52–23:00	Good, Karanjadi → Panvel	Build Sprint 2
23:00–00:00	Good	Demos at the back, awards, arrival

Games with no server

The host says a codeword out loud. Each phone combines it with the rider's seat to deal the same secret roles everywhere: an Orient Express target ring across the whole roster, Mafia roles in 4 seat-block groups, Imposter words in 8 groups. When an Orient Express player is caught, their phone shows their target and a 4-letter handover code, which the catcher enters to take over that target.

Files

• data.js: route, signal zones, run-of-show, perks, roster (the one file to edit)
• core.js: position, signal forecast and seeded dealing, shared by the app and the MCP server
• index.html, app.js, app.css, sw.js, manifest.webmanifest: the installable offline PWA
• server.js: static server plus a read-only MCP endpoint
• agentvillage/: SKILL.md and manifest.json for the Agent Village mini-app catalog (needs the deployed host URL)

Before the ride

• Add Coach C6 seat numbers to ROSTER in data.js.
• Replace station km and clock times once the train number and timetable are confirmed.
• Live at https://edge-blocktrain.vercel.app (MCP: POST /mcp). Redeploy after changes.
• Bump CACHE in sw.js on every update so phones pick up the change.