couple of questions though: • what type does the overall rule need to be? it's the output type of the rule function that determines how it hooks into goals, right? • I don't think I can use

BuiltPackage

as an output type because

docker build

doesn't result in a specific file being made • how do i get access to a build directory? do i just do things in

'(buildroot)%s/build/{binary-name}