diff --git a/larus/config/config.exs b/larus/config/config.exs
--- a/larus/config/config.exs
+++ b/larus/config/config.exs
@@ -9,7 +9,7 @@
 config :larus, Larus.Endpoint,
   url: [host: "localhost"],
   root: Path.dirname(__DIR__),
-  secret_key_base: "P4ngDTuHdlm7r4xqCkz1XwmyQoVJ8tJBDixcKVMEE6aVAwUsy59vZw/b/U7UgYpz",
+  secret_key_base: "P4ngDTuHdlm7r4xqCkz1XwmyQoVJ8tJBDixcKVMEE6aVAwUsy59vZw/b/",
   render_errors: [accepts: ~w(html json)],
   pubsub: [name: Larus.PubSub,
            adapter: Phoenix.PubSub.PG2]
diff --git a/larus/lib/larus.ex b/larus/lib/larus.ex
--- a/larus/lib/larus.ex
+++ b/larus/lib/larus.ex
@@ -1,4 +1,7 @@
 defmodule Larus do
+  @moduledoc """
+  Application
+  """
   use Application
 
   # See http://elixir-lang.org/docs/stable/elixir/Application.html
diff --git a/larus/lib/larus/endpoint.ex b/larus/lib/larus/endpoint.ex
--- a/larus/lib/larus/endpoint.ex
+++ b/larus/lib/larus/endpoint.ex
@@ -1,4 +1,8 @@
 defmodule Larus.Endpoint do
+  @moduledoc """
+  Larus.Endpoint
+  """
+
   use Phoenix.Endpoint, otp_app: :larus
 
   socket "/socket", Larus.UserSocket
diff --git a/larus/lib/larus/repo.ex b/larus/lib/larus/repo.ex
--- a/larus/lib/larus/repo.ex
+++ b/larus/lib/larus/repo.ex
@@ -1,3 +1,6 @@
 defmodule Larus.Repo do
+  @moduledoc """
+  Larus.Repo
+  """
   use Ecto.Repo, otp_app: :larus
 end
diff --git a/larus/mix.exs b/larus/mix.exs
--- a/larus/mix.exs
+++ b/larus/mix.exs
@@ -36,6 +36,7 @@
      {:phoenix_html, "~> 2.4"},
      {:phoenix_live_reload, "~> 1.0", only: :dev},
      {:gettext, "~> 0.9"},
+     {:dogma, "~> 0.1", only: :dev},
      {:cowboy, "~> 1.0"}]
   end
 
diff --git a/larus/test/support/model_case.ex b/larus/test/support/model_case.ex
--- a/larus/test/support/model_case.ex
+++ b/larus/test/support/model_case.ex
@@ -41,12 +41,12 @@
   Given a User model that lists `:name` as a required field and validates
   `:password` to be safe, it would return:
 
-      iex> errors_on(%User{}, %{password: "password"})
+      iex> errors_on(%User{}, %{password: "pass"})
       [password: "is unsafe", name: "is blank"]
 
   You could then write your assertion like:
 
-      assert {:password, "is unsafe"} in errors_on(%User{}, %{password: "password"})
+    assert {:password, "is unsafe"} in errors_on(%User{}, %{password: "pass"})
 
   You can also create the changeset manually and retrieve the errors
   field directly:
diff --git a/larus/test/test_helper.exs b/larus/test/test_helper.exs
--- a/larus/test/test_helper.exs
+++ b/larus/test/test_helper.exs
@@ -3,4 +3,3 @@
 Mix.Task.run "ecto.create", ~w(-r Larus.Repo --quiet)
 Mix.Task.run "ecto.migrate", ~w(-r Larus.Repo --quiet)
 Ecto.Adapters.SQL.begin_test_transaction(Larus.Repo)
-
diff --git a/larus/test/views/layout_view_test.exs b/larus/test/views/layout_view_test.exs
--- a/larus/test/views/layout_view_test.exs
+++ b/larus/test/views/layout_view_test.exs
@@ -1,3 +1,3 @@
 defmodule Larus.LayoutViewTest do
-  use Larus.ConnCase, async: true
-end
\ No newline at end of file
+    use Larus.ConnCase, async: true
+end
diff --git a/larus/web/channels/user_socket.ex b/larus/web/channels/user_socket.ex
--- a/larus/web/channels/user_socket.ex
+++ b/larus/web/channels/user_socket.ex
@@ -1,10 +1,13 @@
 defmodule Larus.UserSocket do
+  @moduledoc """
+  Larus.UserSocket
+  """
   use Phoenix.Socket
 
-  ## Channels
+  # ## Channels
   # channel "rooms:*", Larus.RoomChannel
 
-  ## Transports
+  # ## Transports
   transport :websocket, Phoenix.Transports.WebSocket
   # transport :longpoll, Phoenix.Transports.LongPoll
 
@@ -23,14 +26,15 @@
     {:ok, socket}
   end
 
-  # Socket id's are topics that allow you to identify all sockets for a given user:
+  # Socket id's are topics that allow you to identify all sockets for a given
+  # user:
   #
-  #     def id(socket), do: "users_socket:#{socket.assigns.user_id}"
+  #   def id(socket), do: "users_socket:#{socket.assigns.user_id}"
   #
   # Would allow you to broadcast a "disconnect" event and terminate
   # all active sockets and channels for a given user:
   #
-  #     Larus.Endpoint.broadcast("users_socket:#{user.id}", "disconnect", %{})
+  #   Larus.Endpoint.broadcast("users_socket:#{user.id}", "disconnect", %{})
   #
   # Returning `nil` makes this socket anonymous.
   def id(_socket), do: nil
diff --git a/larus/web/controllers/page_controller.ex b/larus/web/controllers/page_controller.ex
--- a/larus/web/controllers/page_controller.ex
+++ b/larus/web/controllers/page_controller.ex
@@ -1,4 +1,8 @@
 defmodule Larus.PageController do
+  @moduledoc """
+  Larus.PageController
+  """
+
   use Larus.Web, :controller
 
   def index(conn, _params) do
diff --git a/larus/web/gettext.ex b/larus/web/gettext.ex
--- a/larus/web/gettext.ex
+++ b/larus/web/gettext.ex
@@ -5,18 +5,18 @@
   By using [Gettext](http://hexdocs.pm/gettext),
   your module gains a set of macros for translations, for example:
 
-      import Larus.Gettext
+    import Larus.Gettext
 
-      # Simple translation
-      gettext "Here is the string to translate"
+    # Simple translation
+    gettext "Here is the string to translate"
 
-      # Plural translation
-      ngettext "Here is the string to translate",
-               "Here are the strings to translate",
-               3
+    # Plural translation
+    ngettext "Here is the string to translate",
+             "Here are the strings to translate",
+             3
 
-      # Domain-based translation
-      dgettext "errors", "Here is the error message to translate"
+    # Domain-based translation
+    dgettext "errors", "Here is the error message to translate"
 
   See the [Gettext Docs](http://hexdocs.pm/gettext) for detailed usage.
   """
diff --git a/larus/web/router.ex b/larus/web/router.ex
--- a/larus/web/router.ex
+++ b/larus/web/router.ex
@@ -1,4 +1,8 @@
 defmodule Larus.Router do
+  @moduledoc """
+  Larus.Router
+  """
+
   use Larus.Web, :router
 
   pipeline :browser do
diff --git a/larus/web/views/error_helpers.ex b/larus/web/views/error_helpers.ex
--- a/larus/web/views/error_helpers.ex
+++ b/larus/web/views/error_helpers.ex
@@ -9,8 +9,9 @@
   Generates tag for inlined form input errors.
   """
   def error_tag(form, field) do
-    if error = form.errors[field] do
-      content_tag :span, translate_error(error), class: "help-block"
+    error = form.errors[field]
+    if error do
+        content_tag :span, translate_error(error), class: "help-block"
     end
   end
 
@@ -26,6 +27,7 @@
     #
     #     dngettext "errors", "1 file", "%{count} files", count
     #
+
     Gettext.dngettext(Larus.Gettext, "errors", msg, msg, opts[:count], opts)
   end
 
diff --git a/larus/web/views/error_view.ex b/larus/web/views/error_view.ex
--- a/larus/web/views/error_view.ex
+++ b/larus/web/views/error_view.ex
@@ -1,4 +1,8 @@
 defmodule Larus.ErrorView do
+  @moduledoc """
+  Views on errors
+  """
+
   use Larus.Web, :view
 
   def render("404.html", _assigns) do
diff --git a/larus/web/views/layout_view.ex b/larus/web/views/layout_view.ex
--- a/larus/web/views/layout_view.ex
+++ b/larus/web/views/layout_view.ex
@@ -1,3 +1,7 @@
 defmodule Larus.LayoutView do
+  @moduledoc """
+  A layout view.
+  """
+
   use Larus.Web, :view
 end
diff --git a/larus/web/views/page_view.ex b/larus/web/views/page_view.ex
--- a/larus/web/views/page_view.ex
+++ b/larus/web/views/page_view.ex
@@ -1,3 +1,7 @@
 defmodule Larus.PageView do
+  @moduledoc """
+  The Larus page view
+  """
+
   use Larus.Web, :view
 end
diff --git a/larus/web/web.ex b/larus/web/web.ex
--- a/larus/web/web.ex
+++ b/larus/web/web.ex
@@ -44,7 +44,8 @@
       use Phoenix.View, root: "web/templates"
 
       # Import convenience functions from controllers
-      import Phoenix.Controller, only: [get_csrf_token: 0, get_flash: 2, view_module: 1]
+      import Phoenix.Controller, only:
+        [get_csrf_token: 0, get_flash: 2, view_module: 1]
 
       # Use all HTML functionality (forms, tags, etc)
       use Phoenix.HTML