@bright-apartment-76721 : so, to be clear: there is already an abstraction of sorts, in that they all use the

BinaryUtil

Subsystem to get a handle to the base urls and then fetch things:

src/python/pants//backend/codegen/protobuf/java/protobuf_gen.py:from pants.binaries.binary_util import BinaryUtil
src/python/pants//backend/codegen/protobuf/java/protobuf_gen.py:    return super(ProtobufGen, cls).subsystem_dependencies() + (BinaryUtil.Factory,)