@Hugo_D Yes. We are updating the way ammo.js is included in a PlayCanvas project in the Editor. Currently, if the ‘Enable Physics’ checkbox in Settings is checked, ammo.js is loaded internally. We’re removing the ‘Enable Physics’ checkbox and you’ll instead import ammo.js as a regular script asset. This means you can replace it which whatever version you like - for example, you could build ammo.js from source and use that (say, if you wanted to expose some new Bullet functions to your app). A further benefit is that we’ll be enabling the loading of the WebAssembly build of ammo.js with this update. This will bring a large performance boost for using physics in your apps.