diff --git a/lib/nulla/user.ex b/lib/nulla/user.ex
new file mode 100644
index 0000000..a8abb7e
--- /dev/null
+++ b/lib/nulla/user.ex
@@ -0,0 +1,35 @@
+defmodule Nulla.User do
+  use Ecto.Schema
+  import Ecto.Changeset
+
+  schema "users" do
+    field :name, :string
+    field :email, :string
+    field :password, :string
+    field :is_moderator, :boolean, default: false
+
+    field :realname, :string
+    field :bio, :string
+    field :location, :string
+    field :birthday, :date
+    field :fields, :map
+    field :follow_approval, :boolean, default: false
+    field :is_bot, :boolean, default: false
+    field :is_discoverable, :boolean, default: true
+    field :is_indexable, :boolean, default: true
+    field :is_memorial, :boolean, default: false
+    field :private_key, :string
+    field :public_key, :string
+    field :avater, :string
+    field :banner, :string
+
+    timestamps(type: :utc_datetime)
+  end
+
+  @doc false
+  def changeset(user, attrs) do
+    user
+    |> cast(attrs, [:name, :email, :password, :is_moderator, :realname, :bio, :location, :birthday, :fields, :follow_approval, :is_bot, :is_discoverable, :is_indexable, :is_memorial, :private_key, :public_key, :avater, :banner])
+    |> validate_required([:name, :email, :password, :is_moderator, :realname, :bio, :location, :birthday, :fields, :follow_approval, :is_bot, :is_discoverable, :is_indexable, :is_memorial, :private_key, :public_key, :avater, :banner])
+  end
+end
diff --git a/priv/repo/migrations/20250530110822_create_users.exs b/priv/repo/migrations/20250530110822_create_users.exs
new file mode 100644
index 0000000..48fa01a
--- /dev/null
+++ b/priv/repo/migrations/20250530110822_create_users.exs
@@ -0,0 +1,29 @@
+defmodule Nulla.Repo.Migrations.CreateUsers do
+  use Ecto.Migration
+
+  def change do
+    create table(:users) do
+      add :username, :string, null: false, unique: true
+      add :email, :string
+      add :password, :string
+      add :is_moderator, :boolean, default: false, null: false
+
+      add :realname, :string
+      add :bio, :string
+      add :location, :string
+      add :birthday, :date
+      add :fields, :map
+      add :follow_approval, :boolean, default: false, null: false
+      add :is_bot, :boolean, default: false, null: false
+      add :is_discoverable, :boolean, default: true, null: false
+      add :is_indexable, :boolean, default: true, null: false
+      add :is_memorial, :boolean, default: false, null: false
+      add :private_key, :string, null: false
+      add :public_key, :string, null: false
+      add :avater, :string
+      add :banner, :string
+
+      timestamps(type: :utc_datetime)
+    end
+  end
+end