refactor

nixos/common/global/default.nix

@@ -0,0 +1,27 @@
+{ outputs, ... }:
+
+{
+  imports = [
+    ./nix.nix
+    ./ssh.nix
+    ./system-tools.nix
+  ];
+
+  nixpkgs = {
+    overlays = [
+      outputs.overlays.additions
+      outputs.overlays.modifications
+      outputs.overlays.unstable-packages
+    ];
+    config = {
+      allowUnfree = true;
+    };
+  };
+
+  i18n.defaultLocale = "en_AU.UTF-8";
+  time.timeZone = "Australia/Perth";
+
+  networking.domain = "kanto.dev";
+
+  hardware.enableRedistributableFirmware = true;
+}

nixos/common/global/nix.nix

@@ -0,0 +1,27 @@
+{ config, inputs, lib, ... }:
+
+{
+  nix = {
+    gc = {
+      # Automatically run the garbage collector an a specified time.
+      automatic = true;
+      dates = "weekly";
+      options = "--delete-older-than 30d";
+    };
+
+    # This will add each flake input as a registry
+    # To make nix commands consistent with your flake
+    registry = lib.mapAttrs (_: value: { flake = value; }) inputs;
+
+    # This will additionally add your inputs to the system's legacy channels
+    # Making legacy nix commands consistent as well, awesome!
+    nixPath = lib.mapAttrsToList (key: value: "${key}=${value.to.path}") config.nix.registry;
+
+    settings = {
+      # Enable flakes and new 'nix' command
+      experimental-features = "nix-command flakes";
+      # Deduplicate and optimize nix store
+      auto-optimise-store = true;
+    };
+  };
+}

nixos/common/global/ssh.nix

@@ -0,0 +1,13 @@
+{ ... }:
+
+{
+  services.openssh = {
+    enable = true;
+    settings = {
+      PermitRootLogin = "no";
+      PasswordAuthentication = false;
+    };
+    ports = [ 48654 ];
+    openFirewall = true;
+  };
+}

nixos/common/global/system-tools.nix

@@ -0,0 +1,29 @@
+{ pkgs, ... }:
+
+{
+  environment = {
+    systemPackages = with pkgs; [
+      # Ensure home-manager is on all systems
+      home-manager
+
+      # Useful system utilities
+      tree    # directory structure
+      bc      # basic calculator
+      vim     # editor
+      ranger  # console file manager
+      htop    # system monitor
+      scrot   # screenshot
+      direnv  # load environment
+      jq      # JSON processor
+      git     # version control
+
+      # HTTP
+      curl    # transfer dato to/from server
+      wget    # download files from web
+
+      # Archive
+      unrar   # extract roshal archive
+      unzip   # extract zip archive
+    ];
+  };
+}