Add warning to README, add patch for pubsub feeds

README.md

@@ -10,6 +10,19 @@ Based upon patches from:
 - https://github.com/yewtudotbe/invidious-custom
 - https://git.nadeko.net/Fijxu/invidious
 
+# WARNING
+
+This fork is not compatible with upstream invidious (i.e. https://github.com/iv-org/invidious).
+
+If you already have an instance using the official invidious, you CANNOT simply switch to this instance and vice-versa.
+
+This is due to the the following changes which I implemented to improve the performance and reliability of my instance:
+
+- Removal of materialized views as subscription tables in PostgreSQL (see https://github.com/Sommerwiesel/invidious-nerdvpn/blob/nerdvpn/patches/011-2469.patch)
+- Redis as video cache (see https://github.com/Sommerwiesel/invidious-nerdvpn/blob/nerdvpn/patches/010-use-redis-for-video-cache.patch)
+
+If you NEVER used Invidious before, you can safely start with my fork, but you won't be able to switch to upstream Invidious at all. 
+
 # Requirements
 
 You'll have to set these up yourself:

patches/018-add-watch-message.patch

@@ -2,13 +2,12 @@ diff --git a/src/invidious/views/watch.ecr b/src/invidious/views/watch.ecr
 index d137672a..776ea27c 100644
 --- a/src/invidious/views/watch.ecr
 +++ b/src/invidious/views/watch.ecr
-@@ -72,6 +72,11 @@ we're going to need to do it here in order to allow for translations.
+@@ -72,6 +72,10 @@ we're going to need to do it here in order to allow for translations.
  
  <%= rendered "components/feed_menu" %>
  
 +<div id="watch-info">
 +    If the video doesn't start playing with <i>The media could not be loaded</i> error, please just wait for a short while (Invidious will retry automatically) or try switching to another backend.<br />
-+    This error is a simple timing problem with Invidious not waiting until the video data has been loaded from YouTube and will almost always just fix itself on its own.
 +</div>
 +
  <div id="player-container" class="h-box">