Initial basic setup

modules/common.nix

@@ -0,0 +1,45 @@
+{ lib, pkgs, inputs, config, options, ... }:
+  let
+    inherit (lib) mkIf mkDefault mkAliasDefinitions;
+    inherit (lib.my) mkOpt;
+  in {
+    options.my = with lib.types; {
+      user = mkOpt (attrsOf anything) {};
+    };
+
+    config =
+      let
+        defaultUsername = "dev";
+        uname = config.my.user.name;
+      in {
+        my.user = rec {
+          name = mkDefault defaultUsername;
+          isNormalUser = true;
+          uid = mkDefault 1000;
+          extraGroups = mkDefault [ "wheel" ];
+          password = mkDefault "hunter2"; # TODO: secrets...
+        };
+
+        time.timeZone = mkDefault "Europe/Dublin";
+
+        users.mutableUsers = false;
+        users.users.${uname} = mkAliasDefinitions options.my.user;
+        users.groups.${uname}.gid = mkDefault config.users.users.${uname}.uid;
+
+        security = {
+          sudo.enable = mkDefault false;
+          doas = {
+            enable = mkDefault true;
+            wheelNeedsPassword = mkDefault false;
+          };
+        };
+
+        environment.systemPackages = with pkgs; [
+          vim
+          iperf3
+        ];
+
+        system.stateVersion = "21.11";
+        system.configurationRevision = with inputs; mkIf (self ? rev) self.rev;
+      };
+  }

modules/server.nix

@@ -0,0 +1,10 @@
+{ config, lib, ... }:
+  let
+    inherit (lib) mkIf;
+    inherit (lib.my) mkBoolOpt;
+  in {
+    options.my.server.enable = mkBoolOpt false;
+    config = mkIf config.my.server.enable {
+      services.getty.autologinUser = config.my.user.name;
+    };
+  }