Add Nix flakes support

flake.lock

@@ -0,0 +1,27 @@
+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1719223410,
+        "narHash": "sha256-jtIo8xR0Zp4SalIwmD+OdCwHF4l7OU6PD63UUK4ckt4=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "efb39c6052f3ce51587cf19733f5f4e5d515aa13",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,52 @@
+{
+    description = "OBS Studio plugin with image that reacts to sound source";
+
+    inputs = {
+        nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
+    };
+
+    outputs = { self, nixpkgs, ... }:
+    let 
+        forAllSystems = nixpkgs.lib.genAttrs [ "x86_64-linux" "i686-linux" ];
+        nixpkgsFor = forAllSystems (system: import nixpkgs { inherit system; });
+        inherit (nixpkgs) lib;
+    in {
+        packages = forAllSystems (system: 
+        let pkgs = nixpkgsFor.${system}; 
+        in {
+            obs-image-reaction = pkgs.stdenv.mkDerivation {
+                pname = "obs-image-reaction";
+                version = "1.2";
+
+                src = ./.;
+                
+                nativeBuildInputs = with pkgs; [ cmake ];
+                buildInputs = with pkgs; [ obs-studio ];
+
+                postInstall = ''
+                    mkdir $out/lib $out/share
+                    mv $out/obs-plugins/64bit $out/lib/obs-plugins
+                    rm -rf $out/obs-plugins
+                    mv $out/data $out/share/obs
+                '';
+
+                meta = with lib; {
+                    description = "OBS Studio plugin with image that reacts to sound source";
+                    homepage = "https://github.com/L-Nafaryus/obs-image-reaction";
+                    maintainers = [];
+                    license = licenses.gpl2Plus;
+                    platforms = [ "x86_64-linux" "i686-linux" ];
+                };
+            };
+
+            default = self.packages.${system}.obs-image-reaction;
+        });
+
+        devShells = forAllSystems (system: let pkgs = nixpkgsFor.${system}; in {
+            default = pkgs.mkShell {
+                buildInputs = with pkgs; [ gcc cmake gnumake obs-studio ];
+            };
+        });
+    };
+}
+