CLASS REPLACER DURING APPLICATION INSTALLATION

This disclosure describes systems, methods, and computer-readable media related to online advertisement campaign recommendations. An archive file may be received from a server. The archive file may include one or more compiled code files and a manifest file. The archive file may be unpackaged. The one or more compiled code files may be optimized based at least in part on the manifest file. The optimizing the one or more compiled code files may include identifying a first sequence of bytes and a second sequence of bytes from one or more sources; formatting the second sequence of bytes based at least in part on one or more rules; searching the one or more compiled code files to identify one or more sequence of bytes matching the first sequence of bytes; and replacing the identified one or more sequence of bytes with the formatted second sequence of bytes. The optimized compiled code files may be stored.