diff --git a/tubesync/sync/choices.py b/tubesync/sync/choices.py
new file mode 100644
index 00000000..98517a17
--- /dev/null
+++ b/tubesync/sync/choices.py
@@ -0,0 +1,106 @@
+from django.db import models
+from django.utils.translation import gettext_lazy as _
+
+
+DOMAINS = dict({
+    'youtube': frozenset({
+        'youtube.com',
+        'm.youtube.com',
+        'www.youtube.com',
+    }),
+})
+
+
+# as stolen from:
+# - https://wiki.sponsor.ajay.app/w/Types
+# - https://github.com/yt-dlp/yt-dlp/blob/master/yt_dlp/postprocessor/sponsorblock.py
+#
+# The spacing is a little odd, it is for easy copy/paste selection.
+# Please don't change it.
+# Every possible category fits in a string < 128 characters
+class SponsorBlock_Category(models.TextChoices):
+    SPONSOR = 'sponsor', _( 'Sponsor' )
+    INTRO = 'intro', _( 'Intermission/Intro Animation' )
+    OUTRO = 'outro', _( 'Endcards/Credits' )
+    SELFPROMO = 'selfpromo', _( 'Unpaid/Self Promotion' )
+    PREVIEW = 'preview', _( 'Preview/Recap' )
+    FILLER = 'filler', _( 'Filler Tangent' )
+    INTERACTION = 'interaction', _( 'Interaction Reminder' )
+    MUSIC_OFFTOPIC = 'music_offtopic', _( 'Non-Music Section' )
+
+
+class YouTube_SourceType(models.TextChoices):
+    CHANNEL = 'c', _('YouTube channel')
+    CHANNEL_ID = 'i', _('YouTube channel ID')
+    PLAYLIST = 'p', _('YouTube playlist')
+
+
+youtube_long_source_types = {
+    'youtube-channel': YouTube_SourceType.CHANNEL,
+    'youtube-channel-id': YouTube_SourceType.CHANNEL_ID,
+    'youtube-playlist': YouTube_SourceType.PLAYLIST,
+}
+
+
+youtube_help = {
+    'examples': {
+        YouTube_SourceType.CHANNEL: 'https://www.youtube.com/google',
+        YouTube_SourceType.CHANNEL_ID: ('https://www.youtube.com/channel/'
+                                        'UCK8sQmJBp8GCxrOtXWBpyEA'),
+        YouTube_SourceType.PLAYLIST: ('https://www.youtube.com/playlist?list='
+                                      'PL590L5WQmH8dpP0RyH5pCfIaDEdt9nk7r'),
+    },
+    'texts': {
+        YouTube_SourceType.CHANNEL: _(
+            'Enter a YouTube channel URL into the box below. A channel URL will be in '
+            'the format of <strong>https://www.youtube.com/CHANNELNAME</strong> '
+            'where <strong>CHANNELNAME</strong> is the name of the channel you want '
+            'to add.'
+        ),
+        YouTube_SourceType.CHANNEL_ID: _(
+            'Enter a YouTube channel URL by channel ID into the box below. A channel '
+            'URL by channel ID will be in the format of <strong>'
+            'https://www.youtube.com/channel/BiGLoNgUnIqUeId</strong> '
+            'where <strong>BiGLoNgUnIqUeId</strong> is the ID of the channel you want '
+            'to add.'
+        ),
+        YouTube_SourceType.PLAYLIST: _(
+            'Enter a YouTube playlist URL into the box below. A playlist URL will be '
+            'in the format of <strong>https://www.youtube.com/playlist?list='
+            'BiGLoNgUnIqUeId</strong> where <strong>BiGLoNgUnIqUeId</strong> is the '
+            'unique ID of the playlist you want to add.'
+        ),
+    },
+}
+
+
+youtube_validation_urls = {
+    YouTube_SourceType.CHANNEL: {
+        'scheme': 'https',
+        'domains': DOMAINS['youtube'],
+        'path_regex': '^\/(c\/)?([^\/]+)(\/videos)?$',
+        'path_must_not_match': ('/playlist', '/c/playlist'),
+        'qs_args': [],
+        'extract_key': ('path_regex', 1),
+        'example': 'https://www.youtube.com/SOMECHANNEL'
+    },
+    YouTube_SourceType.CHANNEL_ID: {
+        'scheme': 'https',
+        'domains': DOMAINS['youtube'],
+        'path_regex': '^\/channel\/([^\/]+)(\/videos)?$',
+        'path_must_not_match': ('/playlist', '/c/playlist'),
+        'qs_args': [],
+        'extract_key': ('path_regex', 0),
+        'example': 'https://www.youtube.com/channel/CHANNELID'
+    },
+    YouTube_SourceType.PLAYLIST: {
+        'scheme': 'https',
+        'domains': DOMAINS['youtube'],
+        'path_regex': '^\/(playlist|watch)$',
+        'path_must_not_match': (),
+        'qs_args': ('list',),
+        'extract_key': ('qs_args', 'list'),
+        'example': 'https://www.youtube.com/playlist?list=PLAYLISTID'
+    },
+}
+