Hi everyone. in
has a file 8793F200.pub.
Change it in
cat extrepo_nvidia-cuda.sources
Types: deb
Suites: /
Uris: Index of /compute/cuda/repos/debian13/x86_64
Architectures: amd64
Signed-By: /var/lib/extrepo/keys/8793F200.pub
apt update
and It works to me.