feat: add hint about fixing minecraft crashing xorg-server

hosts/nom/default.nix

@@ -17,7 +17,7 @@
     ../../modules/optional/dev
     ../../modules/optional/graphical
     ../../modules/optional/laptop.nix
-    #../../modules/optional/sound.nix
+    ../../modules/optional/sound.nix
     ../../modules/optional/zfs.nix
 
     ../../users/myuser

modules/optional/graphical/xserver.nix

@@ -1,4 +1,9 @@
-{config, pkgs,lib,...}:{
+{
+  config,
+  pkgs,
+  lib,
+  ...
+}: {
   services.xserver = {
     enable = true;
     dpi = 96;

users/myuser/graphical/games/minecraft.nix

@@ -1,4 +1,14 @@
 {pkgs, ...}: {
+  # XXX: Do NOT enable "Use discrete GPU" when running on nvidia by default.
+  # Otherwise the xorg server will crash big time (no logs). After some gdb
+  # debugging the culprit seems to be the x11 nvidia driver (nvidia_drv.so),
+  # which doesn't like it when you set one of the following env variables:
+  # (not entirely sure which one)
+  #   DRI_PRIME=1
+  #   __NV_PRIME_RENDER_OFFLOAD=1
+  #   __VK_LAYER_NV_optimus=NVIDIA_only
+  #   __GLX_VENDOR_LIBRARY_NAME=nvidia
+  # See also: https://github.com/PrismLauncher/PrismLauncher/issues/1628, https://bbs.archlinux.org/viewtopic.php?id=272161
   home.packages = with pkgs; [
     prismlauncher
   ];