The certera web app will run on Windows and Linux. It can also be made to work for mac, but it's not yet compiled for that.

Sorry, I should've been more clear. Do you support AWS parameter store, Hashicorp Vault, and other secret storage systems versus keeping sensitive data locally on disk where your app is running?

Ah, apologies, I should have been able to figure that out. As it stands, it currently only stores on the machine where the app runs.

I have put thought into storing it into something like an HSM as I think that would only raise the confidence, trust and security of Certera. I have that written down as something to pursue in future versions!