Just wanted to drop by saying that trailrouter looks great. One small suggestion. I'd add an option to avoid cemeteries as (at least in some cultures) running through one could be considered ill-mannered.

Here's a link to an example route that I got that includes one: https://trailrouter.com/#wps=52.32928,20.94020%7C52.32805,20... Here's a link to that cemetery on OSM: https://www.openstreetmap.org/way/60865696