Building a mixer adapter with templates

Has anyone worked through a good way to build a Mixer adapter with custom templates? I had been relying on putting the istio repo into vendor/ with “dep” and referencing things from there, but I never liked that much… and as I’m moving onto go modules now, I don’t think this is a good strategy. Just looking for any clever ideas or examples that anyone has to minimize the pain of dealing with protos. :slight_smile: