Derivability When you mark a product as derivable in the catalog, you give permission to every other IMVU Developer to derive a new product from your product. This permission also allows those other IMVU Developers to set their derived products to be derivable. You agree that since the original Developer in a product derivation chain always receives payment of their wholesale price, simply deriving from those derivations does not, in itself, constitute copyright infringement. IMVU Developer Agreement