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{ pkgs, lib, config, ... }: let cfg = config.addons.btrfs; in { options.addons.btrfs = { enable = lib.mkEnableOption "Enable btrfs-related apps and utils"; }; config = lib.mkMerge [ (lib.mkIf cfg.enable { services.btrfs.autoScrub = { enable = true; interval = "weekly"; }; }) ]; }