A continuous integration and delivery (CID) pipeline may deploy code in a state of incomplete testing to at least one user. While the code is deployed, a callback address manager of at least one processor in communication with the CID pipeline may hand the code off to a simulation manager of the at least one processor. The simulation manager may test the code and generate a score decision based on a result of the testing. The simulation manager may send the score decision to the callback address manager. The callback address manager may modify deployment of the code based on the score decision.