Free Blender add-on for VRoid→VRM riggers 🦴
Auto-detects hair card meshes → generates bones → auto weight paint → writes VRM SpringBone (colliders auto-matched too).
Still rough (bones can be uneven, UV unwrap is basic) but the SpringBone+collider automation alone saves real time.
Blender 4.0+ (tested on 4.3)
Free on Booth — link below ⬇️