add LICENSE, shaders, Cargo.lock, and AUR package

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

shaders/light_wave.frag

@@ -0,0 +1,26 @@
+#ifdef GL_ES
+precision mediump float;
+#endif
+
+uniform float time;
+
+uniform vec2 resolution;
+
+#define PI 30
+
+
+void main( void ) {
+
+	vec2 p = ( gl_FragCoord.xy / resolution.xy ) -0.5;
+	
+	float sx = 0.3 * (p.x*p.x*5.0 - 0.7) * cos( 45.0 * p.x - 15. * pow(time*0.03, 0.7)*9.);
+	
+	float dy = 9./ ( 423. * abs(p.y - sx));
+	
+	dy += 11./ (200. * length(p - vec2(p.x, 0.0
+					 )));
+	
+	gl_FragColor = vec4( (p.x + 0.2
+			     ) * dy, 0.3 * dy, dy, 6.1 );
+
+}