The only issue is that the factory firmware validates the server’s TLS certificate by comparing it’s fingerprint with hard-coded values.
This can be overridden by modifying a configuration file (/data/glowforge.conf) on the device, as can the server addresses that the device connects to.
So, as long as you can still get access to the device’s console port (which may be an issue on later production models), you’d be good to go.
Already done! Also see Glowforge Utilities and usage here.