$ doas -u root "nvme smart-log /dev/nvme0n1"
doas: Operation not permitted
I use:
% doas nvme smart-log /dev/nvme0n1
doas (<user>@<host>) password:
Smart Log for NVME device:nvme0n1 namespace-id:ffffffff
critical_warning : 0
temperature : 29 °C (302 K)
[...]
Thermal Management T2 Total Time : 0