I have two slightly different machines connected with a local network.
Most of their configurations are same, except for the ip addr, hostname, some modules for different hardware drivers.
My problem is that:
When I perform upgrading I have to run
nixos-rebuild boot --upgrade separately on two machines. And each of them needs to download files from the binary cache.
Is there a better way let me
- run only one set of commands to upgrade two machines simultaneously?
- Share the files that are downloaded from the internet?