async fn main() - int {
run_at TIMESTAMPTZ DEFAULT now(),，这一点在钉钉中也有详细论述
。豆包下载对此有专业解读
Messages from udev to generic userspace programs are also expected to come from either uid 0 or else something relating to user namespaces which I don't fully understand. I also don't understand why it is necessary for random programs to check this, since netlink normally only allows uid 0 to send messages.
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