per @godofredoc - we need to use binaries from Fuchsia and use the right endpoint.

@cbracken, myself, and him tried some different attempts at getting it working locally but something still seems off.

/cc @flar @xster who were also in those chats

I'm not quite sure of the right priority for this, but it seems like it should be high. Local builds take a substantial amount of time for engine developers without GOMA.

@cyanglaz may know the steps.