diff --git a/src/delarte/__init__.py b/src/delarte/__init__.py
index 4affe09..199c34d 100644
--- a/src/delarte/__init__.py
+++ b/src/delarte/__init__.py
@@ -4,3 +4,33 @@
 """delarte - ArteTV downloader."""
 
 __version__ = "0.1"
+
+from . import api, hls, muxing
+from .model import (
+    Metadata,
+    Rendition,
+    RenditionAudio,
+    RenditionSubtitles,
+    Source,
+    Variant,
+)
+from .www import parse_url as parse_web_url
+
+
+def fetch_sources(http_session, target_id, www_lang):
+    """Fetch a target's sources."""
+    return [
+        source
+        for metadata, master_playlist_url in api.fetch_program_info(
+            http_session, target_id, www_lang
+        )
+        for source in hls.fetch_program_sources(
+            http_session, metadata, master_playlist_url
+        )
+    ]
+
+
+def download_source(http_session, source, file_name, progress):
+    """Download the given source into given file."""
+    with hls.download_source(http_session, source, progress) as local_source:
+        muxing.mux_source(local_source, file_name, progress)
diff --git a/src/delarte/__main__.py b/src/delarte/__main__.py
index 4065fff..dd7db50 100644
--- a/src/delarte/__main__.py
+++ b/src/delarte/__main__.py
@@ -14,7 +14,7 @@ import time
 
 import requests
 
-from . import api, cli, error, hls, muxing, naming, www
+from . import cli, download_source, error, fetch_sources, naming, www
 
 
 class Abort(error.ModuleError):
@@ -147,15 +147,7 @@ def main():
 
         http_session = requests.sessions.Session()
 
-        sources = [
-            source
-            for metadata, master_playlist_url in api.fetch_program_info(
-                http_session, target_id, www_lang
-            )
-            for source in hls.fetch_program_sources(
-                http_session, metadata, master_playlist_url
-            )
-        ]
+        sources = fetch_sources(http_session, target_id, www_lang)
 
         if not args:
             print(f"Available versions:")
@@ -178,8 +170,7 @@ def main():
         progress = create_progress()
 
         for source, file_name in zip(sources, file_names):
-            with hls.download_source(http_session, source, progress) as local_source:
-                muxing.mux_source(local_source, file_name, progress)
+            download_source(http_session, source, file_name, progress)
 
     except error.UnexpectedError as e:
         print(str(e))