Second bit of feedback - http://improve-osm.org/ does a pretty good job of highlighting areas of potentially unmapped areas. Via slack, I've made the suggestion to them to open their platform up to multiple sources such as strava gps traces (via their tile layer).
Would you be open to working with them to deliver the potential missing roads; so that you don't have to reimplement a lot of the basics?
Would you be open to working with them to deliver the potential missing roads; so that you don't have to reimplement a lot of the basics?