A library may include serverless artifacts that support execution of respective serverless functions. For each of the artifacts, a build parameter may have a library artifact identifier, a respective execution environment specifier, and a respective component specifier. An infrastructure realization knowledge base may define an environment mapping for each of the serverless artifacts. A build execution engine may create a build script that can be executed on a serverless artifact build infrastructure. To implement the build script the build script may be transmitted over a build communication channel to a cloud based serverless infrastructure provider.