Yup, cheap routers go this path as well[*]: you get a tarball of Linux sources, sometimes completely unchanged from the mainstream release. Keep your special s

Yup, cheap routers go this path as well[*]: you get a tarball of Linux sources, sometimes completely unchanged from the mainstream release. Keep your special sauce userspace only and you're just fine. [*]: presuming they care about complying with licenses in the slightest, which many do not.