The government of Salzburg operates a public transport planner. This profile adds support for it to hafas-client.
import {createClient} from 'hafas-client'
import {profile as salzburgProfile} from 'hafas-client/p/salzburg/index.js'
const userAgent = 'link-to-your-project-or-email' // adapt this to your project!
// create a client with Salzburg profile
const client = createClient(salzburgProfile, userAgent)Check out the code examples.