I tried to answer your first question below, hope I did! Re: GitHub outage, each org gets their own instance in our cluster and maintains a checkout of the git

I tried to answer your first question below, hope I did! Re: GitHub outage, each org gets their own instance in our cluster and maintains a checkout of the git state, so you can still write/read from your environments, they just wont be synched to GitHub until they recover. We're also thinking about adding other 'sinks' like S3/object stores and OCI as backup sinks.