Location-stack using open-source

I created a location-stack which gives ETA, mutil source-destination distance calculation, Map view and routing between 2 points: https://tech.urbancompany.com/how-uc-built-its-in-house-location-stack-pin-drop-using-open-source-part-one-b2a5ab14b734 Used OSRM, OSM with leaflet.js for it. Do check it out!!