Intuitively, I’m assuming that the code in python to fix this would effectively be:

args = ["compile blah"]
jvm_args = ["-XmX10G", "org.pantsbuild.Zinc"]
EPR = EPR(
  argv = jvm_args + args,
  nailgun_epr = EPR(
    argv = jvm_args,
  )
)

which, while slightly verbose, doesn’t seem crazy to write