SSL Woes? Device prorvisioning failed because this device went offline.

On my Mac, when I launch the Keybase app for the first time and put in my username, I'm given the following message:

There was an error provisioning
Device provisioning failed because this device went offline.
Please check your network connection and try again.

This is almost certainly due to our company gateway swapping out keybase.io's SSL certificate to be one that is trusted our machines (because the company put it there), but not the Keybase software. I found an exchange where a cert was added to the tool with keybase config set proxy_ca_certs <pemfile> ... and I imagine something like this should work for me, but I'm still working at it.

Is there a way to simply disable cert-based authentication entirely? I can't seem to find the option, if one exists. If that is an easy fix and it does solve the problem, what would be the security implications?

Thank you, Keybase & co!

No source file or test is identified; start with the first-launch device provisioning path and the proxy_ca_certs configuration referenced in issue 3143. Determine whether corporate certificate interception is supported and document the security implications of any proposed authentication change.