VRChat Constraints
Constraints will finally be available on all platforms! We’re working on a new component for the VRChat Avatars SDK.
VRChat Constraints work like Unity’s constraint components but are more optimized for VRChat avatars. If you use Unity’s constraints, they’re automatically converted to VRChat constraints in-game.

But that’s not all! We snuck in advanced features such as the “Solve in local space” toggle. If you want to add some fake arms to your avatar, try this feature.
https://global.discourse-cdn.com/vrchat/original/3X/e/f/ef5a4e3693d258836ea3ca0be6dbf8ebcfe6cb0f.mp4
The VRChat Constraint component is still under development. We hope you look forward to trying it out later this year!