Man, i really would like to know how did you implement the destructable terrain. Is it smartShape2d?
No I am just using Godot Polygon2d Nodes + the Godot Geometry class tied together with my own code :)
I made 2 scripts for fracturing polygons and I am currently in the process of adding the cutting of polygons (like you see it in Nomads Sky) to those scripts. The scripts are available on itch and github :D
I hope that helps ;)