1769288238

modules/nixos/shared/nix/common.nix

@@ -0,0 +1,49 @@
+{
+  pkgs,
+  # inputs,
+  # config,
+  lib,
+  ...
+}: {
+  # imports = with inputs; [lix.nixosModules.default];
+  nix = {
+    package = pkgs.lixPackageSets.git.lix;
+    # package = pkgs.lixPackageSets.latest.lix;
+    channel.enable = false;
+    daemonCPUSchedPolicy = "idle";
+    optimise = {
+      automatic = true;
+      dates = ["weekly"];
+    };
+  };
+  nix.settings = {
+    auto-optimise-store = true;
+    experimental-features = [
+      "nix-command"
+      "flakes"
+
+      # for container in builds support
+      "auto-allocate-uids"
+      "cgroups"
+
+      # Enable the use of the fetchClosure built-in function in the Nix language.
+      # "fetch-closure"
+
+      # Allow derivation builders to call Nix, and thus build derivations recursively.
+      # "recursive-nix"
+
+      # Allow the use of the impure-env setting.
+      # "configurable-impure-env"
+    ];
+    # no longer need to pre-allocate build users for everything
+    auto-allocate-uids = lib.mkDefault true;
+
+    # Needs a patch in Nix to work properly: https://github.com/NixOS/nix/pull/13135
+    use-cgroups = true;
+
+    # for container in builds support
+    system-features = ["uid-range"];
+
+    use-xdg-base-directories = true;
+  };
+}

modules/nixos/shared/nix/default.nix

@@ -0,0 +1,6 @@
+{
+  imports = [
+    ./common.nix
+    ./substituters.nix
+  ];
+}

modules/nixos/shared/nix/substituters.nix

@@ -0,0 +1,18 @@
+{
+  nix.settings = {
+    substituters = [
+      "https://cache.nixos.org/"
+      "https://chaotic-nyx.cachix.org/"
+      "https://cosmic.cachix.org/"
+      "https://nix-community.cachix.org/"
+      "https://vicinae.cachix.org"
+    ];
+    trusted-public-keys = [
+      "cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY="
+      "chaotic-nyx.cachix.org-1:HfnXSw4pj95iI/n17rIDy40agHj12WfF+Gqk6SonIT8="
+      "cosmic.cachix.org-1:Dya9IyXD4xdBehWjrkPv6rtxpmMdRel02smYzA85dPE="
+      "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
+      "vicinae.cachix.org-1:1kDrfienkGHPYbkpNj1mWTr7Fm1+zcenzgTizIcI3oc="
+    ];
+  };
+}