The O-RAN-SC project runs most CI tasks in Docker instead of maintaining build and compile tools in LF-managed Jenkins build minions. This area contains the Dockerfiles to assemble images that are used as the first stage in a multi-stage Docker build. These images have large build and compile tools like C, C++, Golang, cmake, ninja, etc. These images are used to compile source and create binary artifacts of O-RAN-SC software features, which are then wrapped in minimal docker images for use.