> Godot 4 has proper multi-window support.

Could you give me a link please? The Godot editor itself can't do multi-window and I haven't found a clear explanation on how to do that in the games either.

> You should be using C# for stuff like that. Ignore the Godot API, just use .NET 8.

I use the non-dotnet version of Godot, I'm not happy with the confusing licensing Microsoft has put around .NET [1]. If anything, I'll go the gdextension route, but it hasn't been painful enough yet to do that. For a UI you couldn't ignore the typing system since you'd need to feed the data into it and read from it a lot.

[1] https://news.ycombinator.com/item?id=35985832

.NET is licensed under MIT[0]. There are additional concessions[1] regarding the code that used to be proprietary specifically to make all the Mono bits to be legally sound.

[0] https://github.com/dotnet/runtime/blob/main/LICENSE.TXT

[1] https://github.com/dotnet/runtime/blob/main/PATENTS.TXT (I think there was another document, please post the link if you remember which one)

As I pointed out in that thread, I wasn't able to track down the license of all required DLLs for the binary distribution.

I think it’s an imagined problem and in practice no one has it. Just stop worrying and start deploying :)

> Could you give me a link please? The Godot editor itself can't do multi-window and I haven't found a clear explanation on how to do that in the games either.

I think the functionality for multiple windows was added before this release but here's the 4.1 notes that you can open the code editor/other stuff in other windows: https://godotengine.org/article/godot-4-1-is-here/#editor

I just tried it and it seems to work.