www-apps/grafana-bin (all versions) depends on: DEPEND="" RDEPEND="${DEPEND} >=dev-lang/go-1.5 net-libs/nodejs " However, as far as I can tell, those are build-time dependencies. This is a binary package and therefore should not need them at all (a hypothetical source package would need them in DEPEND only, not RDEPEND). Both are pretty big packages (nodejs especially) and so carry a pretty big burden if they are spurious.
Thanks for reporting, I'll take a look and address this in the upcoming version bump!
Fixed in 77e5da07ebf7376541167d97a0d5eb8f39ce7f08 The dependencies are build-time, and as such not useful for -bin