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btran299/pangaea-timeline

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App README

Pangea Timeline

Interactive Pangaea / Earth-history timeline (CPSC 431). Register, log in, and manage your own stratigraphic log. Public exhibit works without an account.

This Space runs without MongoDB — data is stored in memory (DEMO_MODE=true). Restarts clear demo accounts and events.

Live app

Open the Space URL once the build finishes. You should see the exhibit and account forms at /.

Local development

bash

npm install
cp .env.example .env
# Edit .env: set MONGO_URI and DB_NAME for real MongoDB, or leave unset for demo mode
npm start

Open http://localhost:3000 (or the port in PORT).

Variable	Purpose
`PORT`	HTTP port (Hugging Face sets this automatically, often `7860`)
`HOST`	Bind address (default `0.0.0.0` in Docker)
`DEMO_MODE`	`true` = in-memory DB; `false` = require MongoDB
`MONGO_URI`	Mongo connection string (local grading)
`DB_NAME`	Database name, e.g. `cpsc431_lastnamefirstname`

Docker (same image as this Space)

bash

docker build -t pangea-timeline .
docker run --rm -p 7860:7860 -e PORT=7860 -e DEMO_MODE=true pangea-timeline

Health check: GET /api/health → {"ok":true,"demoMode":true}

Course / MongoDB setup

For CPSC 431 grading with MongoDB, set DEMO_MODE=false, MONGO_URI, and DB_NAME in .env. WSL notes: see docs/MONGODB-WSL.md.