Some day Cloudflare will depend on GCP and GCP will depend on Cloudflare and AWS will rely on one of the two being online and Cloudflare will also depend on AWS and the internet will go down and no one will know how to restart it
Supposedly there are plans for how to conduct a "cold" start of the system, but as far as I know it's never actually been tried.
Presumably for the infrequently read configs you could do this so the service with frequently read configs can bootstrap without the service for infrequently read configs.
For example a service discovery system periodically serializes peers to disk, and then if the whole thing falls down we have static IP addresses for a node and the service discovery system can use the last known IPs of peers to bring itself back up.
(Its Finnish inventor is incidentally working for Google in Stockholm, as per https://en.wikipedia.org/wiki/Jarkko_Oikarinen)