Integrating Facepunch.CodeSandbox, also upgrades to .NET Core 2.1.8 (happened automatically) Expand the whitelist Almost there, just some codesandbox bugs left Update codesandbox Add a temporary field to addon.json to turn sandboxing off Code sandboxer loads the dependencies on other addons as trusted (they get sandboxed on their own) Disable sandboxing in MapBuilder, MenuSystem, and SourceUtils. Fix SpacePhysics build