feat(nixos): Add marleyos.my module

modules/nixos/base/users/default.nix

@@ -1,10 +1,21 @@
-{config, ...}: {
+_: let
+  my = {
+    name = "marley";
+    username = "punkfairie";
+    fullName = "Marley Rae";
+    email = "marley@punkfairie.net";
+  };
+in {
+  marleyos.my = {
+    inherit (my) name username fullName email;
+  };
+
   users = {
     mutableUsers = false;
 
-    users.users."${config.marleyos.my.name}" = {
+    users.users."${my.name}" = {
       isNormalUser = true;
-      description = config.marleyos.my.fullName;
+      description = my.fullName;
       extraGroups = ["networkmanager" "wheel"];
       hashedPassword = "$y$j9T$ztWf9WeUCENC2T12qS4mi1$51ihV/5cQ8mdJJrNe7MMguk4hPB61S5xHawsfi.1hL3";
     };

modules/nixos/options/my/default.nix

@@ -0,0 +1,48 @@
+{
+  lib,
+  config,
+  ...
+}: let
+  inherit
+    (lib)
+    mkOption
+    types
+    ;
+in {
+  options.marleyos.my = rec {
+    name = mkOption {
+      type = with types; str;
+      default = config.snowfallorg.user.name or "marley";
+      description = "Your username, for use as your login name.";
+    };
+
+    username = mkOption {
+      type = with types; str;
+      default = name;
+      description = "Your username, for external profiles.";
+    };
+
+    fullName = mkOption {
+      type = with types; str;
+      default = name;
+      description = "Your full name, for display purposes.";
+    };
+
+    email = mkOption {
+      type = with types; nullOr str;
+      default = null;
+      description = "Your email";
+    };
+  };
+
+  config = let
+    cfg = config.marleyos.my;
+  in {
+    assertions = [
+      {
+        assertion = cfg.name != null;
+        message = "marleyos.my.name must be set.";
+      }
+    ];
+  };
+}