OpenTripPlanner VS Hauk

For a full multimodal routing engine including realtime data for transit, you should have a look at OpenTripPlanner version 2 (if you haven't already): https://www.opentripplanner.org/

OTP (https://www.opentripplanner.org/) is an OpenSource Software written in Java, that is designed to use open data sources OpenStreetMap (OSM) and the GTFS data. It allows users to plan a trip that can combine multiple modes of transportation, such as bicycling or walking to reach public transportation. It can deal with Interlines (transfers) between different public transportation systems. Users can specify departure or arrival times for public transportation to build isochrones.

It's provided by OpenTripPlanner, the public transport data I managed to find around 2-3 years old, so I doubt it is very accurate. The usual google maps / citymapper and other routing services doesn't provide a way to generate the public transport isochrone or is too expensive/restricted

I've also used OpenTripPlanner for the same purpose in the past and it does generate higher-resolution isochrones but it's also more difficult to use and less flexible in its analysis options.

Hmm. My favorite thing I never actually used — Hauk. Location sharing. I.e. install app on your phone, it creates a link that you can send to someone, and they would see your location on a map on your server.

If you only run official containers from popular repositories, and not less known repositories (which carry more risk), then the normal Rootful Docker is fine.\ I like running smaller projects such as https://github.com/bilde2910/Hauk/, so just in case the Docker image gets infected because e.g. the dev gets hacked, I run Rootless Docker to prevent damage.

If you don't mind self-hosting, check out Hauk.

Hauk https://github.com/bilde2910/Hauk (my first choice)

I'm not sure if this is what you want, but there's something called Hauk you can host yourself.