1 files changed, 44 insertions, 0 deletions
diff --git a/modules/nixos/base/nix.nix b/modules/nixos/base/nix.nix
new file mode 100644
index 0000000..38fcef0
--- /dev/null
+++ b/modules/nixos/base/nix.nix
@@ -0,0 +1,44 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}: let
+  cfg = config.getchoo.base.nix-settings;
+  inherit (lib) mkDefault mkEnableOption mkIf;
+in {
+  options.getchoo.base.nix-settings.enable = mkEnableOption "base nix settings";
+
+  imports = [
+    ./documentation.nix
+    ./packages.nix
+  ];
+
+  config = let
+    channelPath = "/etc/nix/channels/nixpkgs";
+  in
+    mkIf cfg.enable {
+      nix = {
+        package = mkDefault pkgs.nixFlakes;
+
+        gc = {
+          automatic = mkDefault true;
+          dates = mkDefault "weekly";
+          options = mkDefault "--delete-older-than 7d";
+        };
+
+        settings = {
+          auto-optimise-store = true;
+          experimental-features = ["nix-command" "flakes"];
+        };
+
+        nixPath = [
+          "nixpkgs=${channelPath}"
+        ];
+      };
+
+      systemd.tmpfiles.rules = [
+        "L+ ${channelPath}     - - - - ${pkgs.path}"
+      ];
+    };
+}