ssh-keygen -q -t ed25519 -N '' -f /root/rdsshd_host_ed25519_key
make -f Makefile.rdsshd rdsshd \
    RDSSHD_AUTHORIZED_KEYS=/root/id_ed25519.pub \
    RDSSHD_HOST_KEY=/root/rdsshd_host_ed25519_key