diff --git a/src/invidious/playlists.cr b/src/invidious/playlists.cr
index a09e6cdb..ecebba91 100644
--- a/src/invidious/playlists.cr
+++ b/src/invidious/playlists.cr
@@ -90,7 +90,7 @@ struct Playlist
   property updated : Time
   property thumbnail : String?
 
-  def to_json(offset, locale, json : JSON::Builder, video_id : String? = nil)
+  def to_json(offset, json : JSON::Builder, video_id : String? = nil)
     json.object do
       json.field "type", "playlist"
       json.field "title", self.title
@@ -125,7 +125,7 @@ struct Playlist
 
       json.field "videos" do
         json.array do
-          videos = get_playlist_videos(self, offset: offset, locale: locale, video_id: video_id)
+          videos = get_playlist_videos(self, offset: offset, video_id: video_id)
           videos.each do |video|
             video.to_json(json)
           end
@@ -134,13 +134,9 @@ struct Playlist
     end
   end
 
-  def to_json(offset, locale, json : JSON::Builder? = nil, video_id : String? = nil)
-    if json
-      to_json(offset, locale, json, video_id: video_id)
-    else
-      JSON.build do |json|
-        to_json(offset, locale, json, video_id: video_id)
-      end
+  def to_json(offset, _json : Nil = nil, video_id : String? = nil)
+    JSON.build do |json|
+      to_json(offset, json, video_id: video_id)
     end
   end
 
@@ -179,7 +175,7 @@ struct InvidiousPlaylist
     end
   end
 
-  def to_json(offset, locale, json : JSON::Builder, video_id : String? = nil)
+  def to_json(offset, json : JSON::Builder, video_id : String? = nil)
     json.object do
       json.field "type", "invidiousPlaylist"
       json.field "title", self.title
@@ -205,7 +201,7 @@ struct InvidiousPlaylist
             offset = self.index.index(index) || 0
           end
 
-          videos = get_playlist_videos(self, offset: offset, locale: locale, video_id: video_id)
+          videos = get_playlist_videos(self, offset: offset, video_id: video_id)
           videos.each_with_index do |video, index|
             video.to_json(json, offset + index)
           end
@@ -214,13 +210,9 @@ struct InvidiousPlaylist
     end
   end
 
-  def to_json(offset, locale, json : JSON::Builder? = nil, video_id : String? = nil)
-    if json
-      to_json(offset, locale, json, video_id: video_id)
-    else
-      JSON.build do |json|
-        to_json(offset, locale, json, video_id: video_id)
-      end
+  def to_json(offset, _json : Nil = nil, video_id : String? = nil)
+    JSON.build do |json|
+      to_json(offset, json, video_id: video_id)
     end
   end
 
@@ -320,7 +312,7 @@ def produce_playlist_continuation(id, index)
   return continuation
 end
 
-def get_playlist(plid, locale, refresh = true, force_refresh = false)
+def get_playlist(plid : String)
   if plid.starts_with? "IV"
     if playlist = Invidious::Database::Playlists.select(id: plid)
       return playlist
@@ -328,11 +320,11 @@ def get_playlist(plid, locale, refresh = true, force_refresh = false)
       raise InfoException.new("Playlist does not exist.")
     end
   else
-    return fetch_playlist(plid, locale)
+    return fetch_playlist(plid)
   end
 end
 
-def fetch_playlist(plid, locale)
+def fetch_playlist(plid : String)
   if plid.starts_with? "UC"
     plid = "UU#{plid.lchop("UC")}"
   end
@@ -402,7 +394,7 @@ def fetch_playlist(plid, locale)
   })
 end
 
-def get_playlist_videos(playlist, offset, locale = nil, video_id = nil)
+def get_playlist_videos(playlist : InvidiousPlaylist | Playlist, offset : Int32, video_id = nil)
   # Show empy playlist if requested page is out of range
   # (e.g, when a new playlist has been created, offset will be negative)
   if offset >= playlist.video_count || offset < 0
diff --git a/src/invidious/routes/api/v1/authenticated.cr b/src/invidious/routes/api/v1/authenticated.cr
index fda655ef..19c0ee3f 100644
--- a/src/invidious/routes/api/v1/authenticated.cr
+++ b/src/invidious/routes/api/v1/authenticated.cr
@@ -125,7 +125,7 @@ module Invidious::Routes::API::V1::Authenticated
     JSON.build do |json|
       json.array do
         playlists.each do |playlist|
-          playlist.to_json(0, locale, json)
+          playlist.to_json(0, json)
         end
       end
     end
diff --git a/src/invidious/routes/api/v1/misc.cr b/src/invidious/routes/api/v1/misc.cr
index ac0576a0..d10f4fcc 100644
--- a/src/invidious/routes/api/v1/misc.cr
+++ b/src/invidious/routes/api/v1/misc.cr
@@ -14,7 +14,7 @@ module Invidious::Routes::API::V1::Misc
   # APIv1 currently uses the same logic for both
   # user playlists and Invidious playlists. This means that we can't
   # reasonably split them yet. This should be addressed in APIv2
-  def self.get_playlist(env)
+  def self.get_playlist(env : HTTP::Server::Context)
     locale = env.get("preferences").as(Preferences).locale
 
     env.response.content_type = "application/json"
@@ -34,7 +34,7 @@ module Invidious::Routes::API::V1::Misc
     end
 
     begin
-      playlist = get_playlist(plid, locale)
+      playlist = get_playlist(plid)
     rescue ex : InfoException
       return error_json(404, ex)
     rescue ex
@@ -49,7 +49,7 @@ module Invidious::Routes::API::V1::Misc
     # includes into the playlist a maximum of 20 videos, before the offset
     if offset > 0
       lookback = offset < 50 ? offset : 50
-      response = playlist.to_json(offset - lookback, locale)
+      response = playlist.to_json(offset - lookback)
       json_response = JSON.parse(response)
     else
       #  Unless the continuation is really the offset 0, it becomes expensive.
@@ -58,13 +58,13 @@ module Invidious::Routes::API::V1::Misc
       #  it shouldn't happen often though
 
       lookback = 0
-      response = playlist.to_json(offset, locale, video_id: video_id)
+      response = playlist.to_json(offset, video_id: video_id)
       json_response = JSON.parse(response)
 
       if json_response["videos"].as_a[0]["index"] != offset
         offset = json_response["videos"].as_a[0]["index"].as_i
         lookback = offset < 50 ? offset : 50
-        response = playlist.to_json(offset - lookback, locale)
+        response = playlist.to_json(offset - lookback)
         json_response = JSON.parse(response)
       end
     end
diff --git a/src/invidious/routes/embed.cr b/src/invidious/routes/embed.cr
index ab722ae2..0e9701f0 100644
--- a/src/invidious/routes/embed.cr
+++ b/src/invidious/routes/embed.cr
@@ -6,9 +6,9 @@ module Invidious::Routes::Embed
 
     if plid = env.params.query["list"]?.try &.gsub(/[^a-zA-Z0-9_-]/, "")
       begin
-        playlist = get_playlist(plid, locale: locale)
+        playlist = get_playlist(plid)
         offset = env.params.query["index"]?.try &.to_i? || 0
-        videos = get_playlist_videos(playlist, offset: offset, locale: locale)
+        videos = get_playlist_videos(playlist, offset: offset)
       rescue ex
         return error_template(500, ex)
       end
@@ -60,9 +60,9 @@ module Invidious::Routes::Embed
 
       if plid
         begin
-          playlist = get_playlist(plid, locale: locale)
+          playlist = get_playlist(plid)
           offset = env.params.query["index"]?.try &.to_i? || 0
-          videos = get_playlist_videos(playlist, offset: offset, locale: locale)
+          videos = get_playlist_videos(playlist, offset: offset)
         rescue ex
           return error_template(500, ex)
         end
diff --git a/src/invidious/routes/feeds.cr b/src/invidious/routes/feeds.cr
index fd8c25ce..c9271766 100644
--- a/src/invidious/routes/feeds.cr
+++ b/src/invidious/routes/feeds.cr
@@ -265,7 +265,7 @@ module Invidious::Routes::Feeds
 
     if plid.starts_with? "IV"
       if playlist = Invidious::Database::Playlists.select(id: plid)
-        videos = get_playlist_videos(playlist, offset: 0, locale: locale)
+        videos = get_playlist_videos(playlist, offset: 0)
 
         return XML.build(indent: "  ", encoding: "UTF-8") do |xml|
           xml.element("feed", "xmlns:yt": "http://www.youtube.com/xml/schemas/2015",
diff --git a/src/invidious/routes/playlists.cr b/src/invidious/routes/playlists.cr
index d437b79c..7a502a05 100644
--- a/src/invidious/routes/playlists.cr
+++ b/src/invidious/routes/playlists.cr
@@ -66,7 +66,7 @@ module Invidious::Routes::Playlists
     user = user.as(User)
 
     playlist_id = env.params.query["list"]
-    playlist = get_playlist(playlist_id, locale)
+    playlist = get_playlist(playlist_id)
     subscribe_playlist(user, playlist)
 
     env.redirect "/playlist?list=#{playlist.id}"
@@ -161,7 +161,7 @@ module Invidious::Routes::Playlists
     end
 
     begin
-      videos = get_playlist_videos(playlist, offset: (page - 1) * 100, locale: locale)
+      videos = get_playlist_videos(playlist, offset: (page - 1) * 100)
     rescue ex
       videos = [] of PlaylistVideo
     end
@@ -314,7 +314,7 @@ module Invidious::Routes::Playlists
 
     begin
       playlist_id = env.params.query["playlist_id"]
-      playlist = get_playlist(playlist_id, locale).as(InvidiousPlaylist)
+      playlist = get_playlist(playlist_id).as(InvidiousPlaylist)
       raise "Invalid user" if playlist.author != user.email
     rescue ex
       if redirect
@@ -405,7 +405,7 @@ module Invidious::Routes::Playlists
     end
 
     begin
-      playlist = get_playlist(plid, locale)
+      playlist = get_playlist(plid)
     rescue ex
       return error_template(500, ex)
     end
@@ -422,7 +422,7 @@ module Invidious::Routes::Playlists
     end
 
     begin
-      videos = get_playlist_videos(playlist, offset: (page - 1) * 100, locale: locale)
+      videos = get_playlist_videos(playlist, offset: (page - 1) * 100)
     rescue ex
       return error_template(500, "Error encountered while retrieving playlist videos.<br>#{ex.message}")
     end