Nix flake template for Zig Raylib development with dependencies

Zig-Raylib-Flake-Template

<h1>Zig/Raylib Nix Flake Template</h1>
<p>A starting point for developing Zig with Raylib using Nix or in NixOS.</p>
<hr>
<p>Based on: <a href="https://github.com/nix-community/templates/tree/main/zig">https://github.com/nix-community/templates/tree/main/zig</a></p>
<p>Using Raylib-Zig: <a href="https://github.com/Not-Nik/raylib-zig">https://github.com/Not-Nik/raylib-zig</a></p>
<hr>
<p>Building raylib-zig in NixOS throws errors caused by missing system libraries.</p>
<pre><code>error: unable to find dynamic system library &#39;GL&#39; using strategy &#39;paths_first&#39;.
...
error: unable to find dynamic system library &#39;X11&#39; using strategy &#39;paths_first&#39;.
</code></pre>
<p>This flake sets up a development environment with those missing dependencies so you don&#39;t have to install them on your base OS.</p>
<h2>How to use</h2>
<p>Currently, the flake is only setup to use <code>nix develop</code>. You can use <code>nix develop --command bash -c &quot;zig build run; exit;&quot;</code> if you want to do a one-time run without staying in the develp environment.</p>
<h2>Tested With</h2>
<ul>
<li>Zig 0.13.0</li>
<li>Raylib 5.5-dev through raylib-zig</li>
</ul>
