diff --git a/.github/README.md b/.github/README.md
new file mode 100644
index 00000000000000..760f81bf31b497
--- /dev/null
+++ b/.github/README.md
@@ -0,0 +1,22 @@
+# Mastodon fork for [est.social](https://est.social/)
+
+Forked from [Mastodon](https://github.com/mastodon/mastodon/).
+
+This is mainly to manage localization ahead of the official releases.
+
+## Changes made
+
+1. Upped char limit to 10,000 after some [discussion](https://est.social/@diana/109989076059242012) on our site.
+   - app/javascript/mastodon/features/compose/components/compose_form.js
+   - app/serializers/rest/instance_serializer.rb
+   - app/serializers/rest/v1/instance_serializer.rb
+   - app/validators/status_length_validator.rb
+2. Localization. These come from the official [Crowdin project](https://crowdin.com/project/mastodon/et) but they are merged ahead of the official releases.
+   - app/javascript/mastodon/locales/et.json
+   - config/locales/activerecord.et.yml
+   - config/locales/devise.et.yml
+   - config/locales/doorkeeper.et.yml
+   - config/locales/et.yml
+   - config/locales/simple_form.et.yml
+3. Our version suffix `+est`:
+   - lib/mastodon/version.rb
diff --git a/app/javascript/mastodon/features/compose/components/compose_form.jsx b/app/javascript/mastodon/features/compose/components/compose_form.jsx
index 9222b2dc87703b..c6f8052b1df826 100644
--- a/app/javascript/mastodon/features/compose/components/compose_form.jsx
+++ b/app/javascript/mastodon/features/compose/components/compose_form.jsx
@@ -100,7 +100,7 @@ class ComposeForm extends ImmutablePureComponent {
     const fulltext = this.getFulltextForCharacterCounting();
     const isOnlyWhitespace = fulltext.length !== 0 && fulltext.trim().length === 0;
 
-    return !(isSubmitting || isUploading || isChangingUpload || length(fulltext) > 500 || (isOnlyWhitespace && !anyMedia));
+    return !(isSubmitting || isUploading || isChangingUpload || length(fulltext) > 10000 || (isOnlyWhitespace && !anyMedia));
   };
 
   handleSubmit = (e) => {
@@ -297,7 +297,7 @@ class ComposeForm extends ImmutablePureComponent {
             </div>
 
             <div className='character-counter__wrapper'>
-              <CharacterCounter max={500} text={this.getFulltextForCharacterCounting()} />
+              <CharacterCounter max={10000} text={this.getFulltextForCharacterCounting()} />
             </div>
           </div>
         </div>
diff --git a/app/lib/feed_manager.rb b/app/lib/feed_manager.rb
index 26e5b78e8f8864..ff9ba7e73b5e4b 100644
--- a/app/lib/feed_manager.rb
+++ b/app/lib/feed_manager.rb
@@ -7,7 +7,7 @@ class FeedManager
   include Redisable
 
   # Maximum number of items stored in a single feed
-  MAX_ITEMS = 800
+  MAX_ITEMS = 10_000
 
   # Number of items in the feed since last reblog of status
   # before the new reblog will be inserted. Must be <= MAX_ITEMS
diff --git a/app/serializers/rest/instance_serializer.rb b/app/serializers/rest/instance_serializer.rb
index 14aeda9462dbb3..ddbdc48c73ccec 100644
--- a/app/serializers/rest/instance_serializer.rb
+++ b/app/serializers/rest/instance_serializer.rb
@@ -11,7 +11,7 @@ class ContactSerializer < ActiveModel::Serializer
 
   attributes :domain, :title, :version, :source_url, :description,
              :usage, :thumbnail, :languages, :configuration,
-             :registrations
+             :registrations, :max_toot_chars
 
   has_one :contact, serializer: ContactSerializer
   has_many :rules, serializer: REST::RuleSerializer
@@ -89,6 +89,10 @@ def registrations
     }
   end
 
+  def max_toot_chars
+    StatusLengthValidator::MAX_CHARS
+  end
+
   private
 
   def registrations_enabled?
diff --git a/app/serializers/rest/v1/instance_serializer.rb b/app/serializers/rest/v1/instance_serializer.rb
index 99d1b2bd62b75f..1bf3138a82e903 100644
--- a/app/serializers/rest/v1/instance_serializer.rb
+++ b/app/serializers/rest/v1/instance_serializer.rb
@@ -6,7 +6,7 @@ class REST::V1::InstanceSerializer < ActiveModel::Serializer
   attributes :uri, :title, :short_description, :description, :email,
              :version, :urls, :stats, :thumbnail,
              :languages, :registrations, :approval_required, :invites_enabled,
-             :configuration
+             :configuration, :max_toot_chars
 
   has_one :contact_account, serializer: REST::AccountSerializer
 
@@ -98,6 +98,10 @@ def invites_enabled
     UserRole.everyone.can?(:invite_users)
   end
 
+  def max_toot_chars
+    StatusLengthValidator::MAX_CHARS
+  end
+
   private
 
   def instance_presenter
diff --git a/app/validators/status_length_validator.rb b/app/validators/status_length_validator.rb
index dc841ded3e16bc..cd0a9490b711bf 100644
--- a/app/validators/status_length_validator.rb
+++ b/app/validators/status_length_validator.rb
@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
 class StatusLengthValidator < ActiveModel::Validator
-  MAX_CHARS = 500
+  MAX_CHARS = 10_000
   URL_PLACEHOLDER_CHARS = 23
   URL_PLACEHOLDER = 'x' * 23