Add licensing notices and attributions

Author: escherlies

NOTICE

@@ -0,0 +1,7 @@
+## Notice
+
+This project contains modified code from [https://github.com/brybrant/lava-lamp](https://github.com/brybrant/lava-lamp), licensed under the GNU General Public License v3.0.
+
+Modifications are documented in the source files under [./src/lava](./src/lava)
+
+This project as a whole is licensed under the GNU General Public License v3.0.

README.md

@@ -5,3 +5,11 @@
 
   <p><a href="https://escherlies.github.io/nix-con-2025/">Visit the NixCon 2025 Website</a></p>
 </div>
+
+## Development
+
+To get startet run `nix develop`.
+
+## Acknowledgements
+
+The mesmerizing lava lamp is the work of Matt Bryant [https://github.com/brybrant/lava-lamp](https://github.com/brybrant/lava-lamp), licensed under GPL-3.0. (See [NOTICE](./NOTICE))

src/lava/app.js

@@ -1,3 +1,10 @@
+// This file is based on https://github.com/brybrant/lava-lamp
+// Original license: GNU General Public License v3.0
+// See LICENSE file for details.
+// Modifications
+// - Wrap script into a start function
+
+
 import * as TWGL from 'twgl.js';
 
 import vertexShader from './glsl/vertex.glsl';
@@ -14,7 +21,7 @@ import fragmentShader from './glsl/fragment.glsl';
  * @returns {Function} A cleanup function that cancels the animation frame when called
  * @throws {Error} If WebGL context cannot be obtained or shader compilation fails
  */
-export function startLavaAnimation({ 
+export function startLavaAnimation({
   backgroundColor = [0.4, 0.1, 0.4],
   lavaColor = [2.0, 0.8, -0.6]
 } = {}) {

src/lava/glsl/fragment.glsl

@@ -1,3 +1,11 @@
+// This file is based on https://github.com/brybrant/lava-lamp
+// Original license: GNU General Public License v3.0
+// See LICENSE file for details.
+// Modifications:
+// - Include uBackgroundColor and uLavaColor
+// - Add noise overlay shader
+
+
 precision mediump float;
 
 uniform float uTime;

src/lava/glsl/vertex.glsl

@@ -1,3 +1,7 @@
+// This file is based on https://github.com/brybrant/lava-lamp
+// Original license: GNU General Public License v3.0
+// See LICENSE file for details.
+
 attribute vec4 position;
 
 void main() {