I've created a viewer that renders your Gaussian splat (`.spz` file) and the collider mesh (`.glb` file) with the collider displayed as a transparent green wireframe.

**Controls:**
- Mouse drag to orbit around the scene
- Scroll to zoom
- The camera auto-positions to frame the collider mesh

**Next Ideas:**
1. **FPS Navigation** - Add first-person controls with collision detection using the collider mesh as walkable geometry
2. **Toggle Visibility** - Add keyboard shortcuts (1/2) to toggle splat and collider visibility independently

**Ready to level up your viewer? Pick one and let's build it!**