How to solve `Could not initialize GLX` and similar errors?

# Workaround (not recommended)

```bash
export QT_XCB_GL_INTEGRATION=none
```

-- https://github.com/NixOS/nixpkgs/issues/82959#issuecomment-657306112

This a workaround that works most of the times, but what about a proper solution?

# NixGL (recommended)

## Setup

```bash
nix-channel --add https://github.com/nix-community/nixGL/archive/main.tar.gz nixgl && nix-channel --update
nix-env -iA nixgl.auto.nixGLDefault
```

-- https://github.com/nix-community/nixGL?tab=readme-ov-file#nix-channel-recommended


On some NVIDIA systems, it is necessary to force the loading of NVIDIA libraries by adding this line to `.bashrc` or similar:

```bash
export __GLX_VENDOR_LIBRARY_NAME=nvidia
```

-- https://github.com/nix-community/nixGL/issues/177#issuecomment-2221756363

## Run the app

Run you apps as usual:

```bash
nixGL nix-shell -p rstudio -p R --run rstudio
```

To avoid running each command using the `nixGL` wrapper, it is possible to set some environmental variables which will do the same (you might put them in your `shellHook`):

```bash
library_path="$LD_LIBRARY_PATH"
export $(env -i $(which nixGL) $(which printenv))
export LD_LIBRARY_PATH="$library_path:$LD_LIBRARY_PATH"
```

-- https://github.com/nix-community/nixGL/issues/46#issuecomment-2438400233