config.example.yaml

gc:
  onInterval: true # true=daily, false=never or string containing cron interval
  onLowSpace: 2147483648 # 2gb, 0 to disable, will trigger every minute and check threshold on /nix/store partition
  keepDays: 7 # how many days to keep old, unused stuff arround for rollbacks
  maxFree: 0 # _only_ free _up to_ this much space, 0=ignore
system:
  upgrade: # affects nixos-rebuild
    interval: true # true=daily false=never or string containg cron interval
    silentFetch: true # fetch channels silently instead of asking
    silentPrepare: true # prefetch already built derivations from cache but don't build anything just yet, will not run on paid networks (e.g. mobile)
    forceSilentPrepare: false # always run silentPrepare
    silentApplyForNextBoot: true # build with nixos-rebuild boot so update gets applied on next boot
    notifyUpdateAvailable: true # make a notification to apply update during current boot
    rollback:
      checks:
        sanityCheck: true # perform checks while the system is running
        grubFlag: false # add settings to grub to auto-rollback
      allowAuto: critical # never, critical, always - change when auto-rollbacks are done
user:
  upgrade: # affects nix-env
    interval: true # true=daily false=never or string containg cron interval
    silentFetch: true # fetch channels silently instead of asking
    silentPrepare: true # prefetch already built derivations from cache but don't build anything just yet, will not run on paid networks (e.g. mobile)
    silentApply: true # silently build and apply
    forceSilentPrepare: false # always run silentPrepare
cooldownMsAfterBoot: 18000000 # 5 min