{config, ...}: { nix.buildMachines = [ { hostName = "Satori"; system = "x86_64-linux"; maxJobs = 4; speedFactor = 2; supportedFeatures = [ "nixos-test" "benchmark" "big-parallel" "kvm" ]; }] ; nix.distributedBuilds = true; nix.extraOptions = '' builders-use-substitutes = true ''; }