nix: add files to help build on NixOS

README.md

@@ -59,14 +59,16 @@ bash build.sh
 
 This creates `Sonance3.wgt` (~200KB) which you can install via Jellyfin2Samsung.
 
+If you are using Nix, you can make use of the provided `shell.nix` with `nix-shell` to have a shell environment with the needed dependencies.
+
 ## Setup
 
 1. Launch Sonance on your TV
 2. Enter your server address (e.g. `192.168.0.1`) and port (e.g. `4533`)
 3. Enter your username and password
 4. You're in — start browsing and playing
 
-Sonance communicates with your server via the Subsonic REST API. 
+Sonance communicates with your server via the Subsonic REST API.
 
 ## Remote Controls
 
@@ -123,7 +125,7 @@ python3 -m http.server 8080
 # Open http://localhost:8080 in your browser
 ```
 
-The app runs in any modern browser for development. AVPlay features (hardware decoding, media keys) only work on the TV — the browser uses HTML5 Audio as a fallback. 
+The app runs in any modern browser for development. AVPlay features (hardware decoding, media keys) only work on the TV — the browser uses HTML5 Audio as a fallback.
 
 
 ### Project structure
@@ -175,7 +177,7 @@ This app targets Samsung TVs from 2019, which run Chromium 63. Key limitations t
 
 ## Licence
 
-GNU GPL v3. You are free to use this however you want as long as it stays free and open-source. You cannot commercialise this or close source any version of it. 
+GNU GPL v3. You are free to use this however you want as long as it stays free and open-source. You cannot commercialise this or close source any version of it.
 You cannot use this to train AI.
 
 ## Acknowledgements

build.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 # Sonance — Build Script
 # Packages the app into Sonance3.wgt for Samsung Tizen TV deployment.
 #

shell.nix

@@ -0,0 +1,18 @@
+{ pkgs ? import <nixpkgs> {} }:
+
+pkgs.mkShell {
+  buildInputs = with pkgs; [
+    nodejs           # provides node, npm, npx
+    zip
+    unzip
+    gawk
+    gnugrep
+    coreutils        # wc, du, etc.
+  ];
+
+  shellHook = ''
+    echo "Sonance3 dev shell ready."
+    echo "Run:  ./build.sh        # build production .wgt"
+    echo "      ./build.sh --dev  # restore dev mode"
+  '';
+}