initial commit

modules/nixos/common/default.nix

@@ -0,0 +1,12 @@
+{ inputs, ... }:
+
+{
+  imports = [
+    ./nix.nix
+    ./overlays.nix
+
+    inputs.synix.nixosModules.device.server
+  ];
+
+  nixpkgs.config.allowUnfree = true;
+}

modules/nixos/common/nix.nix

@@ -0,0 +1,31 @@
+{
+  nix = {
+    # TODO: add distributed build support for portuus.de
+    # distributedBuilds = true;
+    # buildMachines = [
+    #   {
+    #     hostName = "portuus.de";
+    #     supportedFeatures = [
+    #       "benchmark"
+    #       "big-parallel"
+    #       "kvm"
+    #       "nixos-test"
+    #     ];
+    #     maxJobs = 8;
+    #     system = "x86_64-linux";
+    #   }
+    # ];
+
+    settings = {
+      # binary caches
+      # substituters = [
+      #   "https://cache.portuus.de"
+      # ];
+      # trusted-public-keys = [
+      #   "cache.portuus.de:INZRjwImLIbPbIx8Qp38gTVmSNL0PYE4qlkRzQY2IAU="
+      # ];
+
+      trusted-users = [ "root" ];
+    };
+  };
+}

modules/nixos/common/overlays.nix

@@ -0,0 +1,11 @@
+{ outputs, ... }:
+
+{
+  nixpkgs.overlays = [
+    outputs.overlays.synix-packages
+    outputs.overlays.local-packages
+    outputs.overlays.modifications
+    outputs.overlays.old-stable-packages
+    outputs.overlays.unstable-packages
+  ];
+}