linux-rust: add nix flake (#371)

* build: 👷 add nix flake

* chore: 🙈 add nix's result to gitignore

.gitignore

@@ -659,3 +659,6 @@ obj/
 
 # End of https://www.toptal.com/developers/gitignore/api/qt,c++,clion,kotlin,python,android,pycharm,androidstudio,visualstudiocode,linux
 linux/.qmlls.ini
+
+# Nix build symlink
+result

flake.lock

@@ -0,0 +1,27 @@
+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1764517877,
+        "narHash": "sha256-pp3uT4hHijIC8JUK5MEqeAWmParJrgBVzHLNfJDZxg4=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "2d293cbfa5a793b4c50d17c05ef9e385b90edf6c",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,67 @@
+
+{
+  description = "A Nix-flake-based Rust development environment";
+
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-unstable";
+  };
+
+  outputs =
+    { self, nixpkgs, ... }@inputs:
+
+    let
+      supportedSystems = [
+        "x86_64-linux"
+      ];
+      forAllSystems = nixpkgs.lib.genAttrs supportedSystems;
+      pkgsFor = system: import nixpkgs {
+        inherit system;
+      };
+    in
+    {
+      packages = forAllSystems (system: let
+      pkgs = pkgsFor system;
+      in {
+      default = pkgs.rustPlatform.buildRustPackage rec {
+        name = "librepods";
+        version = "0.1.0";
+
+        doCheck = false;
+
+        nativeBuildInputs = with pkgs; [
+          pkg-config
+          libpulseaudio
+          autoPatchelfHook
+          makeWrapper
+        ];
+
+        buildInputs = with pkgs; [
+          dbus
+          libpulseaudio
+          wayland
+
+          # From https://github.com/max-privatevoid/iced/blob/master/DEPENDENCIES.md
+          expat
+          fontconfig
+          freetype
+          freetype.dev
+          libGL
+          pkg-config
+          xorg.libX11
+          xorg.libXcursor
+          xorg.libXi
+          xorg.libXrandr
+          wayland
+          libxkbcommon
+        ];
+
+        src = ./linux-rust;
+        cargoHash = "sha256-Ebqx+UU2tdygvqvDGjBSxbkmPnkR47/yL3sCVWo54CU=";
+
+        postFixup = ''
+          wrapProgram $out/bin/librepods --suffix LD_LIBRARY_PATH : ${pkgs.lib.makeLibraryPath buildInputs}
+        '';
+      };
+    });
+  };
+}