They weren’t just catching up, the US had nothing, Ericsson had nothing and Huawei had functioning 5G base stations deployed. It took Ericsson another 6? months to get even basic shilled 5G of the ground.

Ghostscript

jfs+lvm on personal machines, ceph on storage, I used to use zfs on solaris and freebsd but haven’t touched it in linux (there isn’t any good reason, and I prefer to not break licensing)