The government of Hong Kong has released public transport data set as GTFS. In response, I have built an OpenTripPlanner instance to work on those data as an experiment to have 100% open data public transport routing.
The instance is currently accessible at the URL https://transport.miklcct.com/ , where the GTFS data set is available from the government at https://data.gov.hk/en-data/dataset/hk-td-tis_11-pt-headway-en .