A system, computer program product, and computer-implemented method for mining software code and assimilating legacy system functionalities are provided. Embodiments comprise a system configured for installing a mining tool on a first system having a first format, the mining tool being configured to continually capture code stored on the first system; identifying a function on the first system, wherein the function is configurable to be independently executable; pulling the function from the first system; converting the function from the first format to a second format; and deploying the function in the second format onto a second system, wherein the function is stored on the second system in the second format and configured to be called by a program.