diff --git a/pkgs/clan-app/ui/src/index.tsx b/pkgs/clan-app/ui/src/index.tsx
index d7a2e428b..595c06822 100644
--- a/pkgs/clan-app/ui/src/index.tsx
+++ b/pkgs/clan-app/ui/src/index.tsx
@@ -3,6 +3,7 @@ import { render } from "solid-js/web";
 
 import "./index.css";
 import { QueryClient } from "@tanstack/solid-query";
+import { CubeScene } from "./scene/qubes";
 
 export const client = new QueryClient();
 
@@ -19,4 +20,4 @@ if (import.meta.env.DEV) {
   await import("solid-devtools");
 }
 
-render(() => <h1>Hello World</h1>, root!);
+render(() => <CubeScene/>, root!);
diff --git a/pkgs/clan-app/ui/src/scene/qubes.tsx b/pkgs/clan-app/ui/src/scene/qubes.tsx
new file mode 100644
index 000000000..6e69bc4ef
--- /dev/null
+++ b/pkgs/clan-app/ui/src/scene/qubes.tsx
@@ -0,0 +1,397 @@
+// Working SolidJS + Three.js cube scene with grid arrangement
+import { createSignal, createEffect, onCleanup, onMount } from "solid-js";
+import * as THREE from "three";
+
+// Cube Data Model
+interface CubeData {
+  id: string;
+  position: [number, number, number];
+  color: string;
+}
+
+export function CubeScene() {
+  let container: HTMLDivElement;
+  let scene: THREE.Scene;
+  let camera: THREE.PerspectiveCamera;
+  let renderer: THREE.WebGLRenderer;
+  let raycaster: THREE.Raycaster;
+  let controls: any; // OrbitControls type
+  let meshMap = new Map<string, THREE.Mesh>();
+
+  let baseMap = new Map<string, THREE.Mesh>(); // Map for cube bases
+  let ambientLightMap = new Map<string, THREE.PointLight>(); // Map for pink ambient lights
+
+  const [cubes, setCubes] = createSignal<CubeData[]>([]);
+  const [selectedIds, setSelectedIds] = createSignal<Set<string>>(new Set());
+  const [cameraInfo, setCameraInfo] = createSignal({
+    position: { x: 0, y: 0, z: 0 },
+    spherical: { radius: 0, theta: 0, phi: 0 }
+  });
+
+  // Grid configuration
+  const GRID_SIZE = 10;
+  const CUBE_SPACING = 2;
+
+  // Calculate grid position for a cube index with floating effect
+  function getGridPosition(index: number): [number, number, number] {
+    const x = (index % GRID_SIZE) * CUBE_SPACING - (GRID_SIZE * CUBE_SPACING) / 2;
+    const z = Math.floor(index / GRID_SIZE) * CUBE_SPACING - (GRID_SIZE * CUBE_SPACING) / 2;
+    return [x, 0.5, z];
+  }
+
+  // Create multi-colored cube materials for different faces
+  function createCubeMaterials() {
+    const materials = [
+      new THREE.MeshBasicMaterial({ color: 0xb0c0c2 }), // Right face - medium
+      new THREE.MeshBasicMaterial({ color: 0x4d6a6b }), // Left face - dark shadow
+      new THREE.MeshBasicMaterial({ color: 0xdce4e5 }), // Top face - light
+      new THREE.MeshBasicMaterial({ color: 0x4d6a6b }), // Bottom face - dark shadow
+      new THREE.MeshBasicMaterial({ color: 0xb0c0c2 }), // Front face - medium
+      new THREE.MeshBasicMaterial({ color: 0x4d6a6b }), // Back face - dark shadow
+    ];
+    return materials;
+  }
+  function createBaseMaterials() {
+    const materials = [
+      new THREE.MeshStandardMaterial({ color: 0xDCE4E5 }), // Right face - medium
+      new THREE.MeshStandardMaterial({ color: 0xA4B3B5 }), // Left face - dark shadow
+      new THREE.MeshStandardMaterial({ color: 0xF2F5F5 }), // Top face - light
+      new THREE.MeshStandardMaterial({ color: 0xA4B3B5 }), // Bottom face - dark shadow
+      new THREE.MeshStandardMaterial({ color: 0xDCE4E5 }), // Front face - medium
+      new THREE.MeshStandardMaterial({ color: 0xA4B3B5 }), // Back face - dark shadow
+    ];
+    return materials;
+  }
+
+  // Create white base for cube
+  function createCubeBase(position: [number, number, number]) {
+    const baseGeometry = new THREE.BoxGeometry(1.2, 0.05, 1.2); // 1.2 times cube size, thin height
+    const baseMaterials = createBaseMaterials();
+    const base = new THREE.Mesh(baseGeometry, baseMaterials);
+    base.position.set(position[0], position[1] - 0.55, position[2]); // Position below cube
+    base.receiveShadow = true;
+    return base;
+  }
+
+  // === Add/Delete Cube API ===
+  function addCube() {
+    const id = crypto.randomUUID();
+    const currentCount = cubes().length;
+    const cube: CubeData = {
+      id,
+      position: getGridPosition(currentCount),
+      color: "blue",
+    };
+    setCubes((prev) => [...prev, cube]);
+  }
+
+  function deleteCube(id: string) {
+    setCubes((prev) => prev.filter((c) => c.id !== id));
+    const mesh = meshMap.get(id);
+    if (mesh) {
+      scene.remove(mesh);
+      mesh.geometry.dispose();
+      (mesh.material as THREE.Material).dispose();
+      meshMap.delete(id);
+    }
+  }
+
+  function toggleSelection(id: string) {
+    setSelectedIds((prev) => {
+      const next = new Set(prev);
+      next.has(id) ? next.delete(id) : next.add(id);
+      return next;
+    });
+  }
+
+  function updateMeshColors() {
+    for (const [id, mesh] of meshMap.entries()) {
+      const selected = selectedIds().has(id);
+      const materials = mesh.material as THREE.Material[];
+
+      if (selected) {
+        // When selected, make all faces red-ish but maintain the lighting difference
+        materials.forEach((material, index) => {
+          (material as THREE.MeshBasicMaterial).color.set(
+            index === 2 ? 0xff6666 : // Top face - lighter red
+            index === 0 || index === 4 ? 0xff4444 : // Front/right faces - medium red
+            0xcc2222 // Shadow faces - darker red
+          );
+        });
+      } else {
+        // Normal colors - restore original face colors
+        materials.forEach((material, index) => {
+          (material as THREE.MeshBasicMaterial).color.set(
+            index === 2 ? 0xdce4e5 : // Top face - light
+            index === 0 || index === 4 ? 0xb0c0c2 : // Front/right faces - medium
+            0x4d6a6b // Shadow faces - dark
+          );
+        });
+      }
+    }
+  }
+
+  onMount(() => {
+    // Scene setup
+    scene = new THREE.Scene();
+    scene.background = new THREE.Color(0xf0f0f0);
+
+    // Camera setup
+    camera = new THREE.PerspectiveCamera(
+      75,
+      container!.clientWidth / container!.clientHeight,
+      0.1,
+      1000
+    );
+    camera.position.set(10, 8, 10);
+    camera.lookAt(0, 0, 0);
+
+    // Renderer setup
+    renderer = new THREE.WebGLRenderer({ antialias: true });
+    renderer.setSize(container.clientWidth, container.clientHeight);
+    renderer.shadowMap.enabled = true;
+    renderer.shadowMap.type = THREE.PCFSoftShadowMap;
+    container.appendChild(renderer.domElement);
+
+    // Lighting - Position directional light like the sun (very far away)
+    const ambientLight = new THREE.AmbientLight(0x404040, 0.4);
+    scene.add(ambientLight);
+
+    const directionalLight = new THREE.DirectionalLight(0xffffff, 0.8);
+    // Position the light very far away to simulate sun-like parallel rays
+    directionalLight.position.set(50, 100, 50);
+    directionalLight.castShadow = true;
+
+    // Configure shadow camera for a larger area with parallel shadows
+    directionalLight.shadow.camera.left = -50;
+    directionalLight.shadow.camera.right = 50;
+    directionalLight.shadow.camera.top = 50;
+    directionalLight.shadow.camera.bottom = -50;
+    directionalLight.shadow.camera.near = 0.1;
+    directionalLight.shadow.camera.far = 200;
+    directionalLight.shadow.mapSize.width = 2048;
+    directionalLight.shadow.mapSize.height = 2048;
+    scene.add(directionalLight);
+
+    // Floor/Ground - Make it invisible but keep it for reference
+    const floorGeometry = new THREE.PlaneGeometry(50, 50);
+    const floorMaterial = new THREE.MeshBasicMaterial({
+      color: 0xcccccc,
+      transparent: true,
+      opacity: 0, // Make completely invisible
+      visible: false // Also hide it completely
+    });
+    const floor = new THREE.Mesh(floorGeometry, floorMaterial);
+    floor.rotation.x = -Math.PI / 2;
+    floor.position.y = 0; // Keep at ground level for reference
+    scene.add(floor);
+
+    // Basic OrbitControls implementation (simplified)
+    let isDragging = false;
+    let previousMousePosition = { x: 0, y: 0 };
+    let spherical = new THREE.Spherical();
+    spherical.setFromVector3(camera.position);
+
+    // Function to update camera info
+    const updateCameraInfo = () => {
+      setCameraInfo({
+        position: {
+          x: Math.round(camera.position.x * 100) / 100,
+          y: Math.round(camera.position.y * 100) / 100,
+          z: Math.round(camera.position.z * 100) / 100
+        },
+        spherical: {
+          radius: Math.round(spherical.radius * 100) / 100,
+          theta: Math.round(spherical.theta * 100) / 100,
+          phi: Math.round(spherical.phi * 100) / 100
+        }
+      });
+    };
+
+    // Initial camera info update
+    updateCameraInfo();
+
+    const onMouseDown = (event: MouseEvent) => {
+      isDragging = true;
+      previousMousePosition = { x: event.clientX, y: event.clientY };
+    };
+
+    const onMouseUp = () => {
+      isDragging = false;
+    };
+
+    const onMouseMove = (event: MouseEvent) => {
+      if (!isDragging) return;
+
+      const deltaX = event.clientX - previousMousePosition.x;
+      const deltaY = event.clientY - previousMousePosition.y;
+
+      spherical.theta -= deltaX * 0.01;
+      spherical.phi += deltaY * 0.01;
+      spherical.phi = Math.max(0.1, Math.min(Math.PI - 0.1, spherical.phi));
+
+      camera.position.setFromSpherical(spherical);
+      camera.lookAt(0, 0, 0);
+      updateCameraInfo();
+
+      previousMousePosition = { x: event.clientX, y: event.clientY };
+    };
+
+    const onWheel = (event: WheelEvent) => {
+      event.preventDefault();
+      spherical.radius += event.deltaY * 0.01;
+      spherical.radius = Math.max(5, Math.min(50, spherical.radius));
+      camera.position.setFromSpherical(spherical);
+      camera.lookAt(0, 0, 0);
+      updateCameraInfo();
+    };
+
+    // Event listeners
+    renderer.domElement.addEventListener('mousedown', onMouseDown);
+    renderer.domElement.addEventListener('mouseup', onMouseUp);
+    renderer.domElement.addEventListener('mousemove', onMouseMove);
+    renderer.domElement.addEventListener('wheel', onWheel);
+
+    // Raycaster for clicking
+    raycaster = new THREE.Raycaster();
+
+    // Click handler for cube selection
+    const onClick = (event: MouseEvent) => {
+      if (isDragging) return; // Don't select if we were dragging
+
+      const rect = renderer.domElement.getBoundingClientRect();
+      const mouse = new THREE.Vector2(
+        ((event.clientX - rect.left) / rect.width) * 2 - 1,
+        -((event.clientY - rect.top) / rect.height) * 2 + 1
+      );
+
+      raycaster.setFromCamera(mouse, camera);
+      const intersects = raycaster.intersectObjects(
+        Array.from(meshMap.values())
+      );
+
+      if (intersects.length > 0) {
+        const id = intersects[0].object.userData.id;
+        toggleSelection(id);
+      }
+    };
+
+    renderer.domElement.addEventListener('click', onClick);
+
+    // Animation loop
+    const animate = () => {
+      requestAnimationFrame(animate);
+      renderer.render(scene, camera);
+    };
+    animate();
+
+    // Handle window resize
+    const handleResize = () => {
+      camera.aspect = container.clientWidth / container.clientHeight;
+      camera.updateProjectionMatrix();
+      renderer.setSize(container.clientWidth, container.clientHeight);
+    };
+    window.addEventListener('resize', handleResize);
+
+    // Cleanup function
+    onCleanup(() => {
+      renderer.domElement.removeEventListener('mousedown', onMouseDown);
+      renderer.domElement.removeEventListener('mouseup', onMouseUp);
+      renderer.domElement.removeEventListener('mousemove', onMouseMove);
+      renderer.domElement.removeEventListener('wheel', onWheel);
+      renderer.domElement.removeEventListener('click', onClick);
+      window.removeEventListener('resize', handleResize);
+    });
+  });
+
+  // Effect to manage cube meshes
+  createEffect(() => {
+    const existing = new Set(meshMap.keys());
+
+    // Update existing cubes and create new ones
+    cubes().forEach((cube) => {
+      if (!meshMap.has(cube.id)) {
+        // Create cube mesh
+        const cubeGeometry = new THREE.BoxGeometry(1, 1, 1);
+        const cubeMaterials = createCubeMaterials();
+        const mesh = new THREE.Mesh(cubeGeometry, cubeMaterials);
+        mesh.castShadow = true;
+        mesh.receiveShadow = true;
+        mesh.position.set(...cube.position);
+        mesh.userData.id = cube.id;
+        scene.add(mesh);
+        meshMap.set(cube.id, mesh);
+
+        // Create base mesh
+        const base = createCubeBase(cube.position);
+        base.userData.id = cube.id;
+        scene.add(base);
+        // baseMap.set(cube.id, base);
+      }
+      existing.delete(cube.id);
+    });
+
+    // Remove cubes that are no longer in the state
+    existing.forEach((id) => {
+      deleteCube(id);
+    });
+
+    updateMeshColors();
+  });
+
+  // Effect to update colors when selection changes
+  createEffect(() => {
+    selectedIds(); // Track the signal
+    updateMeshColors();
+  });
+
+  onCleanup(() => {
+    renderer?.dispose();
+    for (const mesh of meshMap.values()) {
+      mesh.geometry.dispose();
+      // Handle both single material and material array
+      if (Array.isArray(mesh.material)) {
+        mesh.material.forEach(material => material.dispose());
+      } else {
+        mesh.material.dispose();
+      }
+    }
+    meshMap.clear();
+  });
+
+  return (
+    <div>
+      <div style={{ "margin-bottom": "10px" }}>
+        <button onClick={addCube}>Add Cube</button>
+        <span style={{ "margin-left": "10px" }}>
+          Selected: {selectedIds().size} cubes
+        </span>
+      </div>
+
+      {/* Camera Information Display */}
+      <div style={{
+        "margin-bottom": "10px",
+        "font-family": "monospace",
+        "font-size": "12px",
+        "background-color": "#f5f5f5",
+        "padding": "8px",
+        "border-radius": "4px",
+        "border": "1px solid #ddd"
+      }}>
+        <div><strong>Camera Info:</strong></div>
+        <div>Position: ({cameraInfo().position.x}, {cameraInfo().position.y}, {cameraInfo().position.z})</div>
+        <div>Spherical: radius={cameraInfo().spherical.radius}, θ={cameraInfo().spherical.theta}, φ={cameraInfo().spherical.phi}</div>
+      </div>
+
+      <div
+        ref={(el) => (container = el)}
+        style={{
+          width: "100%",
+          height: "500px",
+          border: "1px solid #ccc",
+          cursor: "grab"
+        }}
+      />
+    </div>
+  );
+}
\ No newline at end of file