Thanks! Coasts connect automatically (the Godot build() helper and the lookup table in grid.json handle them), but roads don't. You place them yourself: there's a straight piece and a gentle bend, and you rotate them in 60° steps. Both join at the middle of each hex edge, so any path made only of straights and wide bends lines up cleanly. There aren't junction or sharp-turn pieces yet, so if your prototype needs forks or crossroads you'd have to handle those yourself for now. If that's a dealbreaker, let me know which pieces you'd need.