Lot’s of work that needs to be done, but definitely possible.
First for the Discourse login, I know @supernaturally was looking into this and might have some input
For having a User’s location you will need to attached a Geographic address field on the User, and then a Do Every so many seconds to update the location (if it is ‘live’ and showing where they are moving)
Haven’t done this myself but some other discussions in the forums for people who have done this while building Uber clones, etc.
