Avoid intermediate variables, and use consistent names

lib/discogs.ex

@@ -7,16 +7,12 @@ defmodule Discogs do
 
   @spec get_artist(integer() | String.t()) :: {:ok, map()} | {:error, term()}
   def get_artist(id) do
-    discogs_config = discogs_config()
-
-    API.get_artist(id, discogs_config)
+    API.get_artist(id, discogs_config())
   end
 
   @spec get_artist_image(String.t()) :: {:ok, binary()} | {:error, :cover_not_available}
   def get_artist_image(url) do
-    discogs_config = discogs_config()
-
-    API.get_artist_image(url, discogs_config)
+    API.get_artist_image(url, discogs_config())
   end
 
   defp discogs_config, do: Discogs.Config.resolve(:music_library)

lib/last_fm.ex

@@ -7,8 +7,7 @@ defmodule LastFm do
 
   @spec get_tracks(keyword()) :: {:ok, [Track.t()]} | {:error, term()}
   def get_tracks(opts) do
-    last_fm_config = last_fm_config()
-    API.get_recent_tracks(opts, last_fm_config)
+    API.get_recent_tracks(opts, last_fm_config())
   end
 
   @spec get_artist_info(String.t(), String.t()) :: {:ok, LastFm.Artist.t()} | {:error, term()}
@@ -69,24 +68,19 @@ defmodule LastFm do
 
   @spec get_session(String.t()) :: {:ok, LastFm.Session.t()} | {:error, term()}
   def get_session(token) do
-    last_fm_config = last_fm_config()
-
-    API.get_session(token, last_fm_config)
+    API.get_session(token, last_fm_config())
   end
 
   @spec scrobble([Scrobble.t()], String.t()) :: {:ok, map()} | {:error, term()}
   def scrobble(scrobbles, session_key) do
-    last_fm_config = last_fm_config()
-
     scrobbles
     |> Enum.map(&Scrobble.encode/1)
-    |> API.scrobble(session_key, last_fm_config)
+    |> API.scrobble(session_key, last_fm_config())
   end
 
   @spec get_profile(String.t()) :: {:ok, String.t()} | {:error, term()}
   def get_profile(session_key) do
-    last_fm_config = last_fm_config()
-    API.get_user_info(session_key, last_fm_config)
+    API.get_user_info(session_key, last_fm_config())
   end
 
   @spec auth_url() :: String.t()

lib/open_ai.ex

@@ -14,7 +14,7 @@ defmodule OpenAI do
 
   @spec gpt(OpenAI.Completion.t()) :: {:ok, map()} | {:error, term()}
   def gpt(completion) do
-    API.gpt(completion, config())
+    API.gpt(completion, open_ai_config())
   end
 
   @spec chat_stream([map()], chat_stream_opts()) :: :ok | {:error, term()}
@@ -24,7 +24,7 @@ defmodule OpenAI do
     instructions = Keyword.get(opts, :instructions, "")
     on_chunk = Keyword.fetch!(opts, :on_chunk)
 
-    case API.chat_stream(messages, instructions, model, temperature, config(), on_chunk) do
+    case API.chat_stream(messages, instructions, model, temperature, open_ai_config(), on_chunk) do
       :ok -> :ok
       {:error, _reason} = error -> error
     end
@@ -32,8 +32,8 @@ defmodule OpenAI do
 
   @spec embeddings(String.t()) :: {:ok, [float()]} | {:error, term()}
   def embeddings(text) do
-    API.get_embeddings(text, config())
+    API.get_embeddings(text, open_ai_config())
   end
 
-  defp config, do: OpenAI.Config.resolve(:music_library)
+  defp open_ai_config, do: OpenAI.Config.resolve(:music_library)
 end

lib/wikipedia.ex

@@ -7,11 +7,12 @@ defmodule Wikipedia do
 
   @spec get_artist_summary(String.t()) :: {:ok, map()} | {:error, :no_english_wikipedia | term()}
   def get_artist_summary(wikidata_id) do
-    config = wikipedia_config()
+    wikipedia_config = wikipedia_config()
 
-    with {:ok, title} when not is_nil(title) <- API.get_wikipedia_title(wikidata_id, config),
-         {:ok, summary} <- API.get_article_summary(title, config),
-         {:ok, intro_html} <- API.get_article_extract(title, config) do
+    with {:ok, title} when not is_nil(title) <-
+           API.get_wikipedia_title(wikidata_id, wikipedia_config),
+         {:ok, summary} <- API.get_article_summary(title, wikipedia_config),
+         {:ok, intro_html} <- API.get_article_extract(title, wikipedia_config) do
       {:ok, Map.put(summary, "intro_html", intro_html)}
     else
       {:ok, nil} -> {:error, :no_english_wikipedia}