[BUG] Black window when running example

[joepie91]

Describe the bug
Running the example in examples/ results in a fully black window with no visible UI (although it does log mouse events), and a number of errors in the console.

Console:

[nix-shell:~/projects/_3rdparty/qml-raub/examples]$ pnpm start

> example@0.0.0 start /home/sven/projects/_3rdparty/qml-raub/examples
> tsx main.ts

Unknown error
WebGL `init()` call failed, but it may still work.
GLFW Error 65548: Wayland: The platform does not support setting the window icon

Notably, I am on NixOS, and so I need to declare all dependencies explicitly in a shell.nix file, which looks like this:

{ pkgs ? import <nixpkgs> {} }:
	with pkgs; stdenv.mkDerivation rec {
		name = "development-environment";

		buildInputs = [
			libGL
			glfw
			qt6.full
		];

		LD_LIBRARY_PATH = "${lib.makeLibraryPath buildInputs}:/run/opengl-driver/lib";
	}

Presumably something is missing, but the console output does not seem to tell me what it is.

• NixOS version: 24.11.20250201.f668777 (Vicuna)
• Desktop environment: KDE Plasma

To Reproduce
Steps to reproduce the behavior:

1. Clone repository
2. Create shell.nix in repository root, with the content as above
3. Enter Nix shell using nix-shell
4. In repository root, run pnpm install
5. In examples/ folder, run pnpm install
6. In examples/ folder, run pnpm start

Expected behavior
Should show a window with custom buttons and a textarea, according to the gui.qml.

[raub]

Hi! Do you use Wayland or X? I'm not exactly sure it can work properly with Wayland because EGL is tricky and I only have WSL (Windows). There might be an issue with context sharing between GLFW and Qt on EGL.

Or maybe it just can't find some of the dependencies. Can you check if glfw-raub works without QML in your environment?

One additional way to debug dependencies is LD_DEBUG=libs pnpm start.