{ lib, pkgs, ... }: { # ... # Limit the number of generations to keep boot.loader.systemd-boot.configurationLimit = 10; # boot.loader.grub.configurationLimit = 10; # Perform garbage collection weekly to maintain low disk usage nix.gc = { automatic = true; dates = "weekly"; options = "--delete-older-than 1w"; }; # Optimize storage # You can also manually optimize the store via: # nix-store --optimise # Refer to the following link for more details: # https://nixos.org/manual/nix/stable/command-ref/conf-file.html#conf-auto-optimise-store nix.settings.auto-optimise-store = true; }