This package contains awful API, so PLEASE USE ONLY FOR EXPERIMENTS.
yarn install
env PORT=8080 yarn start
curl -o - http://localhost:8080/b1000000.ical?pw=PASSWORD
curl -o - http://localhost:8080/b1000000.json?pw=PASSWORD
This server requests authentification to manaba.fun.ac.jp for each request. So please don't call this API repeatedly.