feat(home): My module

modules/home/my/default.nix

@@ -0,0 +1,73 @@
+{
+  namespace,
+  lib,
+  config,
+  ...
+}:
+let
+  inherit (lib)
+    mkOption
+    types
+    mkDefault
+    mkIf
+    ;
+in
+{
+  options.${namespace}.my = rec {
+    name = mkOption {
+      type = types.str;
+      default = config.snowfallorg.user.name or "marley";
+      description = "Your username, for use as your login name.";
+    };
+
+    username = mkOption {
+      type = types.str;
+      default = name;
+      description = "Your username, for external profiles.";
+    };
+
+    fullName = mkOption {
+      type = types.str;
+      default = name;
+      description = "Your full name, for display purposes.";
+    };
+
+    email = mkOption {
+      type = types.NullOr types.str;
+      default = null;
+      description = "Your email";
+    };
+
+    git.name = mkOption {
+      type = types.str;
+      default = name;
+      description = "Your git committer name.";
+    };
+
+    git.email = mkOption {
+      type = types.nullOr types.str;
+      default = email;
+      description = "Your git committer email.";
+    };
+  };
+
+  config =
+    let
+      cfg = config.${namespace}.my;
+    in
+    {
+      assertions = [
+        {
+          assertion = cfg.name != null;
+          message = "${namespace}.my.name must be set.";
+        }
+      ];
+
+      home.username = mkDefault cfg.name;
+
+      programs.git = mkIf config.programs.git.enable {
+        userName = mkDefault cfg.git.name;
+        userEmail = mkDefault cfg.git.email;
+      };
+    };
+}