Semi-related: I built a Godot plugin that adds a Ghostty-based terminal pane to the Godot editor (https://godotengine.org/asset-library/asset/5426).

Godot as an application platform and not just a game engine is a really interesting idea. Given Godot’s editor is built as a Godot engine game, it has a very rich UI system, and it is pretty easy for agents to work with.