export const PORT = process.env.PORT || 3000;
export const MONGO_URI = process.env.MONGO_URI || 'mongodb://mongo:27017/zenkanji' || 'mongodb://192.168.0.26:27017/zenkanji';
export const SRS_TIMINGS_HOURS = [0, 0, 4, 8, 23, 47];
export const JWT_SECRET = process.env.JWT_SECRET;