Hi,
Glad to be helpful. I have learned something as well. I might use this setting you mentioned in some future projects.
I am unsure about your setup but if you want the setup to be offline and fully automated I would consider sharing own local feeds on SMB share aka Windows Drive. I have been using this approach for a long time. Then you could simply add the certificates to the local feed and have access to it from all the machines.
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Dawid Wozny
Certified LabVIEW Architect
Certified Azure Administrator