Add alsa-lib to shell.nix and flake.nix for audio support Reference: https://github.com/mackron/miniaudio/issues/267#issuecomment-770345648

Working-on-GNU-Linux.md

@@ -227,14 +227,19 @@ tar xvf external/5.5.tar.gz -C external/
     nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
   };
 
-  outputs = { self , nixpkgs ,... }: let
+  outputs = {
+    self,
+    nixpkgs,
+    ...
+  }: let
     system = "x86_64-linux";
   in {
     devShells."${system}".default = let
       pkgs = import nixpkgs {
         inherit system;
       };
-    in pkgs.mkShell {
+    in
+      pkgs.mkShell {
         packages = [
           pkgs.libGL
 
@@ -249,6 +254,9 @@ tar xvf external/5.5.tar.gz -C external/
           # Uncomment the line below if you want to build Raylib with web support
           # pkgs.emscripten
         ];
+
+        # Audio dependencies
+        LD_LIBRARY_PATH = pkgs.lib.makeLibraryPath [pkgs.alsa-lib];
       };
   };
 }
@@ -264,9 +272,8 @@ nix develop
 
 Alternatively, you can create a `shell.nix` file in the root folder of your project with the following content:
 ```nix
-{ pkgs ? import <nixpkgs> {} }:
-
-  pkgs.mkShell {
+{pkgs ? import <nixpkgs> {}}:
+pkgs.mkShell {
   nativeBuildInputs = [
     pkgs.libGL
 
@@ -281,6 +288,9 @@ Alternatively, you can create a `shell.nix` file in the root folder of your proj
     # Web support (uncomment to enable)
     # pkgs.emscripten
   ];
+
+  # Audio dependencies
+  LD_LIBRARY_PATH = pkgs.lib.makeLibraryPath [pkgs.alsa-lib];
 }
 ```