Squash merge dev into master

modules/steam.nix

@@ -1,4 +1,9 @@
-{pkgs, ...}: {
+{
+  pkgs,
+  lib,
+  config,
+  ...
+}: {
   programs.steam = {
     enable = true;
     remotePlay.openFirewall = true;
@@ -26,8 +31,18 @@
     vulkan-validation-layers
     libstrangle
     piper
+    portaudio
+    alsa-lib
+    ffmpeg
+    stdenv.cc.cc.lib
   ];
-  environment.variables = {
-    LD_LIBRARY_PATH = "${pkgs.mangohud}/lib";
+  environment.sessionVariables = {
+    LD_LIBRARY_PATH = lib.makeLibraryPath [
+      pkgs.mangohud
+      pkgs.portaudio
+      pkgs.alsa-lib
+      pkgs.ffmpeg
+      pkgs.stdenv.cc.cc.lib
+    ];
   };
 }