Why Your SFTP Transfer Is Stuck at 2 MB/s (and the Fix Is a Protocol from 1983)

Two minutes to copy a 274 MB file to a VM running on localhost. Not over the internet. Not to a cloud instance across the country. Localhost. The same machine, loopback, zero network latency. That was the experience a user reported in issue #290 on cubic, a lightweight CLI for managing QEMU/KVM virt