diff --git a/docs/installation/otp_en.md b/docs/installation/otp_en.md
index 8c02201e67..f2812346b1 100644
--- a/docs/installation/otp_en.md
+++ b/docs/installation/otp_en.md
@@ -2,15 +2,16 @@
 
 {! backend/installation/otp_vs_from_source.include !}
 
-This guide covers a installation using an OTP release. To install Pleroma from source, please check out the corresponding guide for your distro.
+This guide covers a installation using OTP releases as built by the Pleroma project, it is meant as a fallback to distribution packages/recipes which are the preferred installation method.  
+To install Pleroma from source, please check out the corresponding guide for your distro.
 
 ## Pre-requisites
-* A machine running Linux with GNU (e.g. Debian, Ubuntu) or musl (e.g. Alpine) libc and `x86_64`, `aarch64` or `armv7l` CPU, you have root access to. If you are not sure if it's compatible see [Detecting flavour section](#detecting-flavour) below
+* A machine you have root access to running Debian GNU/Linux or compatible (eg. Ubuntu), or Alpine on `x86_64`, `aarch64` or `armv7l` CPU. If you are not sure what you are running see [Detecting flavour section](#detecting-flavour) below
 * A (sub)domain pointed to the machine
 
-You will be running commands as root. If you aren't root already, please elevate your privileges by executing `sudo su`/`su`.
+You will be running commands as root. If you aren't root already, please elevate your privileges by executing `sudo -i`/`su`.
 
-While in theory OTP releases are possbile to install on any compatible machine, for the sake of simplicity this guide focuses only on Debian/Ubuntu and Alpine.
+Similarly to other binaries, OTP releases tend to be only compatible with the distro they are built on, as such this guide focuses only on Debian/Ubuntu and Alpine.
 
 ### Detecting flavour
 
@@ -19,7 +20,7 @@ Paste the following into the shell:
 arch="$(uname -m)";if [ "$arch" = "x86_64" ];then arch="amd64";elif [ "$arch" = "armv7l" ];then arch="arm";elif [ "$arch" = "aarch64" ];then arch="arm64";else echo "Unsupported arch: $arch">&2;fi;if getconf GNU_LIBC_VERSION>/dev/null;then libc_postfix="";elif [ "$(ldd 2>&1|head -c 9)" = "musl libc" ];then libc_postfix="-musl";elif [ "$(find /lib/libc.musl*|wc -l)" ];then libc_postfix="-musl";else echo "Unsupported libc">&2;fi;echo "$arch$libc_postfix"
 ```
 
-If your platform is supported the output will contain the flavour string, you will need it later. If not, this just means that we don't build releases for your platform, you can still try installing from source.
+This should give your flavour string. If not this just means that we don't build releases for your platform, you can still try installing from source.
 
 ### Installing the required packages
 
diff --git a/lib/pleroma/emoji.ex b/lib/pleroma/emoji.ex
index dd65d56ae4..43a3447c34 100644
--- a/lib/pleroma/emoji.ex
+++ b/lib/pleroma/emoji.ex
@@ -51,6 +51,8 @@ def reload do
   @doc "Returns the path of the emoji `name`."
   @spec get(String.t()) :: String.t() | nil
   def get(name) do
+    name = maybe_strip_name(name)
+
     case :ets.lookup(@ets, name) do
       [{_, path}] -> path
       _ -> nil
@@ -139,6 +141,57 @@ def is_unicode_emoji?(unquote(emoji)), do: true
 
   def is_unicode_emoji?(_), do: false
 
+  @emoji_regex ~r/:[A-Za-z0-9_-]+(@.+)?:/
+
+  def is_custom_emoji?(s) when is_binary(s), do: Regex.match?(@emoji_regex, s)
+
+  def is_custom_emoji?(_), do: false
+
+  def maybe_strip_name(name) when is_binary(name), do: String.trim(name, ":")
+
+  def maybe_strip_name(name), do: name
+
+  def maybe_quote(name) when is_binary(name) do
+    if is_unicode_emoji?(name) do
+      name
+    else
+      if String.starts_with?(name, ":") do
+        name
+      else
+        ":#{name}:"
+      end
+    end
+  end
+
+  def maybe_quote(name), do: name
+
+  def emoji_url(%{"type" => "EmojiReact", "content" => _, "tag" => []}), do: nil
+
+  def emoji_url(%{"type" => "EmojiReact", "content" => emoji, "tag" => tags}) do
+    emoji = maybe_strip_name(emoji)
+
+    tag =
+      tags
+      |> Enum.find(fn tag ->
+        tag["type"] == "Emoji" && !is_nil(tag["name"]) && tag["name"] == emoji
+      end)
+
+    if is_nil(tag) do
+      nil
+    else
+      tag
+      |> Map.get("icon")
+      |> Map.get("url")
+    end
+  end
+
+  def emoji_url(_), do: nil
+
+  def emoji_name_with_instance(name, url) do
+    url = url |> URI.parse() |> Map.get(:host)
+    "#{name}@#{url}"
+  end
+
   emoji_qualification_map =
     emojis
     |> Enum.filter(&String.contains?(&1, "\uFE0F"))
diff --git a/lib/pleroma/web/activity_pub/builder.ex b/lib/pleroma/web/activity_pub/builder.ex
index c0ec6352ef..054bd04587 100644
--- a/lib/pleroma/web/activity_pub/builder.ex
+++ b/lib/pleroma/web/activity_pub/builder.ex
@@ -16,6 +16,7 @@ defmodule Pleroma.Web.ActivityPub.Builder do
   alias Pleroma.Web.ActivityPub.Utils
   alias Pleroma.Web.ActivityPub.Visibility
   alias Pleroma.Web.CommonAPI.ActivityDraft
+  alias Pleroma.Web.Endpoint
 
   require Pleroma.Constants
 
@@ -66,13 +67,87 @@ def follow(follower, followed) do
     {:ok, data, []}
   end
 
+  defp unicode_emoji_react(_object, data, emoji) do
+    data
+    |> Map.put("content", emoji)
+    |> Map.put("type", "EmojiReact")
+  end
+
+  defp add_emoji_content(data, emoji, url) do
+    tag = [
+      %{
+        "id" => url,
+        "type" => "Emoji",
+        "name" => Emoji.maybe_quote(emoji),
+        "icon" => %{
+          "type" => "Image",
+          "url" => url
+        }
+      }
+    ]
+
+    data
+    |> Map.put("content", Emoji.maybe_quote(emoji))
+    |> Map.put("type", "EmojiReact")
+    |> Map.put("tag", tag)
+  end
+
+  defp remote_custom_emoji_react(
+         %{data: %{"reactions" => existing_reactions}},
+         data,
+         emoji
+       ) do
+    [emoji_code, instance] = String.split(Emoji.maybe_strip_name(emoji), "@")
+
+    matching_reaction =
+      Enum.find(
+        existing_reactions,
+        fn [name, _, url] ->
+          if url != nil do
+            url = URI.parse(url)
+            url.host == instance && name == emoji_code
+          end
+        end
+      )
+
+    if matching_reaction do
+      [name, _, url] = matching_reaction
+      add_emoji_content(data, name, url)
+    else
+      {:error, "Could not react"}
+    end
+  end
+
+  defp remote_custom_emoji_react(_object, _data, _emoji) do
+    {:error, "Could not react"}
+  end
+
+  defp local_custom_emoji_react(data, emoji) do
+    with %{file: path} = emojo <- Emoji.get(emoji) do
+      url = "#{Endpoint.url()}#{path}"
+      add_emoji_content(data, emojo.code, url)
+    else
+      _ -> {:error, "Emoji does not exist"}
+    end
+  end
+
+  defp custom_emoji_react(object, data, emoji) do
+    if String.contains?(emoji, "@") do
+      remote_custom_emoji_react(object, data, emoji)
+    else
+      local_custom_emoji_react(data, emoji)
+    end
+  end
+
   @spec emoji_react(User.t(), Object.t(), String.t()) :: {:ok, map(), keyword()}
   def emoji_react(actor, object, emoji) do
     with {:ok, data, meta} <- object_action(actor, object) do
       data =
-        data
-        |> Map.put("content", emoji)
-        |> Map.put("type", "EmojiReact")
+        if Emoji.is_unicode_emoji?(emoji) do
+          unicode_emoji_react(object, data, emoji)
+        else
+          custom_emoji_react(object, data, emoji)
+        end
 
       {:ok, data, meta}
     end
diff --git a/lib/pleroma/web/activity_pub/object_validators/emoji_react_validator.ex b/lib/pleroma/web/activity_pub/object_validators/emoji_react_validator.ex
index 0858281e54..a0b82b3257 100644
--- a/lib/pleroma/web/activity_pub/object_validators/emoji_react_validator.ex
+++ b/lib/pleroma/web/activity_pub/object_validators/emoji_react_validator.ex
@@ -5,8 +5,10 @@
 defmodule Pleroma.Web.ActivityPub.ObjectValidators.EmojiReactValidator do
   use Ecto.Schema
 
+  alias Pleroma.Emoji
   alias Pleroma.Object
   alias Pleroma.Web.ActivityPub.ObjectValidators.CommonFixes
+  alias Pleroma.Web.ActivityPub.ObjectValidators.TagValidator
 
   import Ecto.Changeset
   import Pleroma.Web.ActivityPub.ObjectValidators.CommonValidations
@@ -19,6 +21,7 @@ defmodule Pleroma.Web.ActivityPub.ObjectValidators.EmojiReactValidator do
         import Elixir.Pleroma.Web.ActivityPub.ObjectValidators.CommonFields
         message_fields()
         activity_fields()
+        embeds_many(:tag, TagValidator)
       end
     end
 
@@ -43,7 +46,8 @@ def cast_data(data) do
 
   def changeset(struct, data) do
     struct
-    |> cast(data, __schema__(:fields))
+    |> cast(data, __schema__(:fields) -- [:tag])
+    |> cast_embed(:tag)
   end
 
   defp fix(data) do
@@ -53,12 +57,16 @@ defp fix(data) do
       |> CommonFixes.fix_actor()
       |> CommonFixes.fix_activity_addressing()
 
-    with %Object{} = object <- Object.normalize(data["object"]) do
-      data
-      |> CommonFixes.fix_activity_context(object)
-      |> CommonFixes.fix_object_action_recipients(object)
-    else
-      _ -> data
+    data = Map.put_new(data, "tag", [])
+
+    case Object.normalize(data["object"]) do
+      %Object{} = object ->
+        data
+        |> CommonFixes.fix_activity_context(object)
+        |> CommonFixes.fix_object_action_recipients(object)
+
+      _ ->
+        data
     end
   end
 
@@ -82,11 +90,31 @@ defp fix_emoji_qualification(data), do: data
   defp validate_emoji(cng) do
     content = get_field(cng, :content)
 
-    if Pleroma.Emoji.is_unicode_emoji?(content) do
+    if Emoji.is_unicode_emoji?(content) || Emoji.is_custom_emoji?(content) do
       cng
     else
       cng
-      |> add_error(:content, "must be a single character emoji")
+      |> add_error(:content, "is not a valid emoji")
+    end
+  end
+
+  defp maybe_validate_tag_presence(cng) do
+    content = get_field(cng, :content)
+
+    if Emoji.is_unicode_emoji?(content) do
+      cng
+    else
+      tag = get_field(cng, :tag)
+      emoji_name = Emoji.maybe_strip_name(content)
+
+      case tag do
+        [%{name: ^emoji_name, type: "Emoji", icon: %{url: _}}] ->
+          cng
+
+        _ ->
+          cng
+          |> add_error(:tag, "does not contain an Emoji tag")
+      end
     end
   end
 
@@ -97,5 +125,6 @@ defp validate_data(data_cng) do
     |> validate_actor_presence()
     |> validate_object_presence()
     |> validate_emoji()
+    |> maybe_validate_tag_presence()
   end
 end
diff --git a/lib/pleroma/web/activity_pub/utils.ex b/lib/pleroma/web/activity_pub/utils.ex
index 704d4cef58..64f7e30989 100644
--- a/lib/pleroma/web/activity_pub/utils.ex
+++ b/lib/pleroma/web/activity_pub/utils.ex
@@ -332,21 +332,29 @@ def update_element_in_object(property, element, object, count \\ nil) do
           {:ok, Object.t()} | {:error, Ecto.Changeset.t()}
 
   def add_emoji_reaction_to_object(
-        %Activity{data: %{"content" => emoji, "actor" => actor}},
+        %Activity{data: %{"content" => emoji, "actor" => actor}} = activity,
         object
       ) do
     reactions = get_cached_emoji_reactions(object)
+    emoji = Pleroma.Emoji.maybe_strip_name(emoji)
+    url = maybe_emoji_url(emoji, activity)
 
     new_reactions =
-      case Enum.find_index(reactions, fn [candidate, _] -> emoji == candidate end) do
+      case Enum.find_index(reactions, fn [candidate, _, candidate_url] ->
+             if is_nil(candidate_url) do
+               emoji == candidate
+             else
+               url == candidate_url
+             end
+           end) do
         nil ->
-          reactions ++ [[emoji, [actor]]]
+          reactions ++ [[emoji, [actor], url]]
 
         index ->
           List.update_at(
             reactions,
             index,
-            fn [emoji, users] -> [emoji, Enum.uniq([actor | users])] end
+            fn [emoji, users, url] -> [emoji, Enum.uniq([actor | users]), url] end
           )
       end
 
@@ -355,18 +363,40 @@ def add_emoji_reaction_to_object(
     update_element_in_object("reaction", new_reactions, object, count)
   end
 
+  defp maybe_emoji_url(
+         name,
+         %Activity{
+           data: %{
+             "tag" => [
+               %{"type" => "Emoji", "name" => name, "icon" => %{"url" => url}}
+             ]
+           }
+         }
+       ),
+       do: url
+
+  defp maybe_emoji_url(_, _), do: nil
+
   def emoji_count(reactions_list) do
-    Enum.reduce(reactions_list, 0, fn [_, users], acc -> acc + length(users) end)
+    Enum.reduce(reactions_list, 0, fn [_, users, _], acc -> acc + length(users) end)
   end
 
   def remove_emoji_reaction_from_object(
-        %Activity{data: %{"content" => emoji, "actor" => actor}},
+        %Activity{data: %{"content" => emoji, "actor" => actor}} = activity,
         object
       ) do
+    emoji = Pleroma.Emoji.maybe_strip_name(emoji)
     reactions = get_cached_emoji_reactions(object)
+    url = maybe_emoji_url(emoji, activity)
 
     new_reactions =
-      case Enum.find_index(reactions, fn [candidate, _] -> emoji == candidate end) do
+      case Enum.find_index(reactions, fn [candidate, _, candidate_url] ->
+             if is_nil(candidate_url) do
+               emoji == candidate
+             else
+               url == candidate_url
+             end
+           end) do
         nil ->
           reactions
 
@@ -374,9 +404,9 @@ def remove_emoji_reaction_from_object(
           List.update_at(
             reactions,
             index,
-            fn [emoji, users] -> [emoji, List.delete(users, actor)] end
+            fn [emoji, users, url] -> [emoji, List.delete(users, actor), url] end
           )
-          |> Enum.reject(fn [_, users] -> Enum.empty?(users) end)
+          |> Enum.reject(fn [_, users, _] -> Enum.empty?(users) end)
       end
 
     count = emoji_count(new_reactions)
@@ -538,17 +568,37 @@ def fetch_latest_undo(%User{ap_id: ap_id}) do
 
   def get_latest_reaction(internal_activity_id, %{ap_id: ap_id}, emoji) do
     %{data: %{"object" => object_ap_id}} = Activity.get_by_id(internal_activity_id)
+    emoji = Pleroma.Emoji.maybe_quote(emoji)
 
     "EmojiReact"
     |> Activity.Queries.by_type()
     |> where(actor: ^ap_id)
-    |> where([activity], fragment("?->>'content' = ?", activity.data, ^emoji))
+    |> custom_emoji_discriminator(emoji)
     |> Activity.Queries.by_object_id(object_ap_id)
     |> order_by([activity], fragment("? desc nulls last", activity.id))
     |> limit(1)
     |> Repo.one()
   end
 
+  defp custom_emoji_discriminator(query, emoji) do
+    if String.contains?(emoji, "@") do
+      stripped = Pleroma.Emoji.maybe_strip_name(emoji)
+      [name, domain] = String.split(stripped, "@")
+      domain_pattern = "%/" <> domain <> "/%"
+      emoji_pattern = Pleroma.Emoji.maybe_quote(name)
+
+      query
+      |> where([activity], fragment("?->>'content' = ?
+        AND EXISTS (
+          SELECT FROM jsonb_array_elements(?->'tag') elem
+          WHERE elem->>'id' ILIKE ?
+        )", activity.data, ^emoji_pattern, activity.data, ^domain_pattern))
+    else
+      query
+      |> where([activity], fragment("?->>'content' = ?", activity.data, ^emoji))
+    end
+  end
+
   #### Announce-related helpers
 
   @doc """
diff --git a/lib/pleroma/web/mastodon_api/views/instance_view.ex b/lib/pleroma/web/mastodon_api/views/instance_view.ex
index 4822522d79..50ae2a1409 100644
--- a/lib/pleroma/web/mastodon_api/views/instance_view.ex
+++ b/lib/pleroma/web/mastodon_api/views/instance_view.ex
@@ -162,6 +162,7 @@ def features do
         "safe_dm_mentions"
       end,
       "pleroma_emoji_reactions",
+      "pleroma_custom_emoji_reactions",
       "pleroma_chat_messages",
       "email_list",
       if Config.get([:instance, :show_reactions]) do
diff --git a/lib/pleroma/web/mastodon_api/views/notification_view.ex b/lib/pleroma/web/mastodon_api/views/notification_view.ex
index d8f565eacf..c067c62152 100644
--- a/lib/pleroma/web/mastodon_api/views/notification_view.ex
+++ b/lib/pleroma/web/mastodon_api/views/notification_view.ex
@@ -17,6 +17,7 @@ defmodule Pleroma.Web.MastodonAPI.NotificationView do
   alias Pleroma.Web.MastodonAPI.AccountView
   alias Pleroma.Web.MastodonAPI.NotificationView
   alias Pleroma.Web.MastodonAPI.StatusView
+  alias Pleroma.Web.MediaProxy
   alias Pleroma.Web.PleromaAPI.Chat.MessageReferenceView
 
   defp object_id_for(%{data: %{"object" => %{"id" => id}}}) when is_binary(id), do: id
@@ -157,7 +158,9 @@ defp put_report(response, activity) do
   end
 
   defp put_emoji(response, activity) do
-    Map.put(response, :emoji, activity.data["content"])
+    response
+    |> Map.put(:emoji, activity.data["content"])
+    |> Map.put(:emoji_url, MediaProxy.url(Pleroma.Emoji.emoji_url(activity.data)))
   end
 
   defp put_chat_message(response, activity, reading_user, opts) do
diff --git a/lib/pleroma/web/mastodon_api/views/status_view.ex b/lib/pleroma/web/mastodon_api/views/status_view.ex
index cb1afb2c91..a2728ca8ae 100644
--- a/lib/pleroma/web/mastodon_api/views/status_view.ex
+++ b/lib/pleroma/web/mastodon_api/views/status_view.ex
@@ -377,8 +377,8 @@ def render("show.json", %{activity: %{data: %{"object" => _object}} = activity}
         opts[:for],
         Map.get(opts, :with_muted, false)
       )
-      |> Stream.map(fn {emoji, users} ->
-        build_emoji_map(emoji, users, opts[:for])
+      |> Stream.map(fn {emoji, users, url} ->
+        build_emoji_map(emoji, users, url, opts[:for])
       end)
       |> Enum.to_list()
 
@@ -841,11 +841,13 @@ defp pin_data(%Object{data: %{"id" => object_id}}, %User{pinned_objects: pinned_
     end
   end
 
-  defp build_emoji_map(emoji, users, current_user) do
+  defp build_emoji_map(emoji, users, url, current_user) do
     %{
-      name: emoji,
+      name: Pleroma.Web.PleromaAPI.EmojiReactionView.emoji_name(emoji, url),
       count: length(users),
-      me: !!(current_user && current_user.ap_id in users)
+      url: MediaProxy.url(url),
+      me: !!(current_user && current_user.ap_id in users),
+      account_ids: Enum.map(users, fn user -> User.get_cached_by_ap_id(user).id end)
     }
   end
 
diff --git a/lib/pleroma/web/metadata/providers/rel_me.ex b/lib/pleroma/web/metadata/providers/rel_me.ex
index f0bee85c80..eabd8cb001 100644
--- a/lib/pleroma/web/metadata/providers/rel_me.ex
+++ b/lib/pleroma/web/metadata/providers/rel_me.ex
@@ -8,12 +8,20 @@ defmodule Pleroma.Web.Metadata.Providers.RelMe do
 
   @impl Provider
   def build_tags(%{user: user}) do
-    bio_tree = Floki.parse_fragment!(user.bio)
+    profile_tree =
+      user.bio
+      |> append_fields_tag(user.fields)
+      |> Floki.parse_fragment!()
 
-    (Floki.attribute(bio_tree, "link[rel~=me]", "href") ++
-       Floki.attribute(bio_tree, "a[rel~=me]", "href"))
+    (Floki.attribute(profile_tree, "link[rel~=me]", "href") ++
+       Floki.attribute(profile_tree, "a[rel~=me]", "href"))
     |> Enum.map(fn link ->
       {:link, [rel: "me", href: link], []}
     end)
   end
+
+  defp append_fields_tag(bio, fields) do
+    fields
+    |> Enum.reduce(bio, fn %{"value" => v}, res -> res <> v end)
+  end
 end
diff --git a/lib/pleroma/web/pleroma_api/controllers/emoji_reaction_controller.ex b/lib/pleroma/web/pleroma_api/controllers/emoji_reaction_controller.ex
index 78fd0b2197..e095fa04a3 100644
--- a/lib/pleroma/web/pleroma_api/controllers/emoji_reaction_controller.ex
+++ b/lib/pleroma/web/pleroma_api/controllers/emoji_reaction_controller.ex
@@ -50,29 +50,35 @@ def filter_allowed_users(reactions, user, with_muted) do
           if not with_muted, do: User.cached_muted_users_ap_ids(user), else: []
       end
 
-    filter_emoji = fn emoji, users ->
+    filter_emoji = fn emoji, users, url ->
       case Enum.reject(users, &(&1 in exclude_ap_ids)) do
         [] -> nil
-        users -> {emoji, users}
+        users -> {emoji, users, url}
       end
     end
 
     reactions
     |> Stream.map(fn
-      [emoji, users] when is_list(users) -> filter_emoji.(emoji, users)
-      {emoji, users} when is_list(users) -> filter_emoji.(emoji, users)
+      [emoji, users, url] when is_list(users) -> filter_emoji.(emoji, users, url)
+      {emoji, users, url} when is_list(users) -> filter_emoji.(emoji, users, url)
+      {emoji, users} when is_list(users) -> filter_emoji.(emoji, users, nil)
       _ -> nil
     end)
     |> Stream.reject(&is_nil/1)
   end
 
   defp filter(reactions, %{emoji: emoji}) when is_binary(emoji) do
-    Enum.filter(reactions, fn [e, _] -> e == emoji end)
+    Enum.filter(reactions, fn [e, _, _] -> e == emoji end)
   end
 
   defp filter(reactions, _), do: reactions
 
   def create(%{assigns: %{user: user}} = conn, %{id: activity_id, emoji: emoji}) do
+    emoji =
+      emoji
+      |> Pleroma.Emoji.fully_qualify_emoji()
+      |> Pleroma.Emoji.maybe_quote()
+
     with {:ok, _activity} <- CommonAPI.react_with_emoji(activity_id, user, emoji) do
       activity = Activity.get_by_id(activity_id)
 
@@ -83,6 +89,11 @@ def create(%{assigns: %{user: user}} = conn, %{id: activity_id, emoji: emoji}) d
   end
 
   def delete(%{assigns: %{user: user}} = conn, %{id: activity_id, emoji: emoji}) do
+    emoji =
+      emoji
+      |> Pleroma.Emoji.fully_qualify_emoji()
+      |> Pleroma.Emoji.maybe_quote()
+
     with {:ok, _activity} <- CommonAPI.unreact_with_emoji(activity_id, user, emoji) do
       activity = Activity.get_by_id(activity_id)
 
diff --git a/lib/pleroma/web/pleroma_api/views/emoji_reaction_view.ex b/lib/pleroma/web/pleroma_api/views/emoji_reaction_view.ex
index 68ebd8292a..6df4ab9d0d 100644
--- a/lib/pleroma/web/pleroma_api/views/emoji_reaction_view.ex
+++ b/lib/pleroma/web/pleroma_api/views/emoji_reaction_view.ex
@@ -7,17 +7,30 @@ defmodule Pleroma.Web.PleromaAPI.EmojiReactionView do
 
   alias Pleroma.Web.MastodonAPI.AccountView
 
+  def emoji_name(emoji, nil), do: emoji
+
+  def emoji_name(emoji, url) do
+    url = URI.parse(url)
+
+    if url.host == Pleroma.Web.Endpoint.host() do
+      emoji
+    else
+      "#{emoji}@#{url.host}"
+    end
+  end
+
   def render("index.json", %{emoji_reactions: emoji_reactions} = opts) do
     render_many(emoji_reactions, __MODULE__, "show.json", opts)
   end
 
-  def render("show.json", %{emoji_reaction: {emoji, user_ap_ids}, user: user}) do
+  def render("show.json", %{emoji_reaction: {emoji, user_ap_ids, url}, user: user}) do
     users = fetch_users(user_ap_ids)
 
     %{
-      name: emoji,
+      name: emoji_name(emoji, url),
       count: length(users),
       accounts: render(AccountView, "index.json", users: users, for: user),
+      url: Pleroma.Web.MediaProxy.url(url),
       me: !!(user && user.ap_id in user_ap_ids)
     }
   end
diff --git a/test/fixtures/custom-emoji-reaction.json b/test/fixtures/custom-emoji-reaction.json
new file mode 100644
index 0000000000..003de0511e
--- /dev/null
+++ b/test/fixtures/custom-emoji-reaction.json
@@ -0,0 +1,28 @@
+{
+  "@context": [
+    "https://www.w3.org/ns/activitystreams",
+    "https://w3id.org/security/v1",
+    {
+      "Hashtag": "as:Hashtag"
+    }
+  ],
+  "type": "Like",
+  "id": "https://misskey.local.live/likes/917ocsybgp",
+  "actor": "https://misskey.local.live/users/8x8yep20u2",
+  "object": "https://pleroma.local.live/objects/89937a53-2692-4631-bb62-770091267391",
+  "content": ":hanapog:",
+  "_misskey_reaction": ":hanapog:",
+  "tag": [
+    {
+      "id": "https://misskey.local.live/emojis/hanapog",
+      "type": "Emoji",
+      "name": ":hanapog:",
+      "updated": "2022-06-07T12:00:05.773Z",
+      "icon": {
+        "type": "Image",
+        "mediaType": "image/png",
+        "url": "https://misskey.local.live/files/webpublic-8f8a9768-7264-4171-88d6-2356aabeadcd"
+      }
+    }
+  ]
+}
diff --git a/test/pleroma/web/activity_pub/object_validators/emoji_react_handling_test.exs b/test/pleroma/web/activity_pub/object_validators/emoji_react_handling_test.exs
index bbdb09c4cd..9bb291a38a 100644
--- a/test/pleroma/web/activity_pub/object_validators/emoji_react_handling_test.exs
+++ b/test/pleroma/web/activity_pub/object_validators/emoji_react_handling_test.exs
@@ -38,16 +38,70 @@ test "it is not valid without a 'content' field", %{valid_emoji_react: valid_emo
       assert {:content, {"can't be blank", [validation: :required]}} in cng.errors
     end
 
-    test "it is not valid with a non-emoji content field", %{valid_emoji_react: valid_emoji_react} do
+    test "it is valid when custom emoji is used", %{valid_emoji_react: valid_emoji_react} do
       without_emoji_content =
         valid_emoji_react
-        |> Map.put("content", "x")
+        |> Map.put("content", ":hello:")
+        |> Map.put("tag", [
+          %{
+            "type" => "Emoji",
+            "name" => ":hello:",
+            "icon" => %{"url" => "http://somewhere", "type" => "Image"}
+          }
+        ])
+
+      {:ok, _, _} = ObjectValidator.validate(without_emoji_content, [])
+    end
+
+    test "it is not valid when custom emoji don't have a matching tag", %{
+      valid_emoji_react: valid_emoji_react
+    } do
+      without_emoji_content =
+        valid_emoji_react
+        |> Map.put("content", ":hello:")
+        |> Map.put("tag", [
+          %{
+            "type" => "Emoji",
+            "name" => ":whoops:",
+            "icon" => %{"url" => "http://somewhere", "type" => "Image"}
+          }
+        ])
 
       {:error, cng} = ObjectValidator.validate(without_emoji_content, [])
 
       refute cng.valid?
 
-      assert {:content, {"must be a single character emoji", []}} in cng.errors
+      assert {:tag, {"does not contain an Emoji tag", []}} in cng.errors
+    end
+
+    test "it is not valid when custom emoji have no tags", %{
+      valid_emoji_react: valid_emoji_react
+    } do
+      without_emoji_content =
+        valid_emoji_react
+        |> Map.put("content", ":hello:")
+        |> Map.put("tag", [])
+
+      {:error, cng} = ObjectValidator.validate(without_emoji_content, [])
+
+      refute cng.valid?
+
+      assert {:tag, {"does not contain an Emoji tag", []}} in cng.errors
+    end
+
+    test "it is not valid when custom emoji doesn't match a shortcode format", %{
+      valid_emoji_react: valid_emoji_react
+    } do
+      without_emoji_content =
+        valid_emoji_react
+        |> Map.put("content", "hello")
+        |> Map.put("tag", [])
+
+      {:error, cng} = ObjectValidator.validate(without_emoji_content, [])
+
+      refute cng.valid?
+
+      assert {:tag, {"does not contain an Emoji tag", []}} in cng.errors
     end
   end
 end
diff --git a/test/pleroma/web/activity_pub/side_effects_test.exs b/test/pleroma/web/activity_pub/side_effects_test.exs
index ae55dd0357..c144dc19bb 100644
--- a/test/pleroma/web/activity_pub/side_effects_test.exs
+++ b/test/pleroma/web/activity_pub/side_effects_test.exs
@@ -453,7 +453,7 @@ test "adds the reaction to the object", %{emoji_react: emoji_react, user: user}
       object = Object.get_by_ap_id(emoji_react.data["object"])
 
       assert object.data["reaction_count"] == 1
-      assert ["👌", [user.ap_id]] in object.data["reactions"]
+      assert ["👌", [user.ap_id], nil] in object.data["reactions"]
     end
 
     test "creates a notification", %{emoji_react: emoji_react, poster: poster} do
diff --git a/test/pleroma/web/activity_pub/transmogrifier/emoji_react_handling_test.exs b/test/pleroma/web/activity_pub/transmogrifier/emoji_react_handling_test.exs
index 83bf59c6f3..f2e1cefa3e 100644
--- a/test/pleroma/web/activity_pub/transmogrifier/emoji_react_handling_test.exs
+++ b/test/pleroma/web/activity_pub/transmogrifier/emoji_react_handling_test.exs
@@ -34,7 +34,56 @@ test "it works for incoming emoji reactions" do
     object = Object.get_by_ap_id(data["object"])
 
     assert object.data["reaction_count"] == 1
-    assert match?([["👌", _]], object.data["reactions"])
+    assert match?([["👌", _, nil]], object.data["reactions"])
+  end
+
+  test "it works for incoming custom emoji reactions" do
+    user = insert(:user)
+    other_user = insert(:user, local: false)
+    {:ok, activity} = CommonAPI.post(user, %{status: "hello"})
+
+    data =
+      File.read!("test/fixtures/custom-emoji-reaction.json")
+      |> Jason.decode!()
+      |> Map.put("object", activity.data["object"])
+      |> Map.put("actor", other_user.ap_id)
+
+    {:ok, %Activity{data: data, local: false}} = Transmogrifier.handle_incoming(data)
+
+    assert data["actor"] == other_user.ap_id
+    assert data["type"] == "EmojiReact"
+    assert data["id"] == "https://misskey.local.live/likes/917ocsybgp"
+    assert data["object"] == activity.data["object"]
+    assert data["content"] == ":hanapog:"
+
+    assert data["tag"] == [
+             %{
+               "id" => "https://misskey.local.live/emojis/hanapog",
+               "type" => "Emoji",
+               "name" => "hanapog",
+               "updated" => "2022-06-07T12:00:05.773Z",
+               "icon" => %{
+                 "type" => "Image",
+                 "url" =>
+                   "https://misskey.local.live/files/webpublic-8f8a9768-7264-4171-88d6-2356aabeadcd"
+               }
+             }
+           ]
+
+    object = Object.get_by_ap_id(data["object"])
+
+    assert object.data["reaction_count"] == 1
+
+    assert match?(
+             [
+               [
+                 "hanapog",
+                 _,
+                 "https://misskey.local.live/files/webpublic-8f8a9768-7264-4171-88d6-2356aabeadcd"
+               ]
+             ],
+             object.data["reactions"]
+           )
   end
 
   test "it works for incoming unqualified emoji reactions" do
@@ -65,7 +114,7 @@ test "it works for incoming unqualified emoji reactions" do
     object = Object.get_by_ap_id(data["object"])
 
     assert object.data["reaction_count"] == 1
-    assert match?([[^emoji, _]], object.data["reactions"])
+    assert match?([[^emoji, _, _]], object.data["reactions"])
   end
 
   test "it reject invalid emoji reactions" do
diff --git a/test/pleroma/web/mastodon_api/views/notification_view_test.exs b/test/pleroma/web/mastodon_api/views/notification_view_test.exs
index 3faa4082ec..f62a55eeb6 100644
--- a/test/pleroma/web/mastodon_api/views/notification_view_test.exs
+++ b/test/pleroma/web/mastodon_api/views/notification_view_test.exs
@@ -191,7 +191,47 @@ test "EmojiReact notification" do
       emoji: "☕",
       account: AccountView.render("show.json", %{user: other_user, for: user}),
       status: StatusView.render("show.json", %{activity: activity, for: user}),
-      created_at: Utils.to_masto_date(notification.inserted_at)
+      created_at: Utils.to_masto_date(notification.inserted_at),
+      emoji_url: nil
+    }
+
+    test_notifications_rendering([notification], user, [expected])
+  end
+
+  test "EmojiReact custom emoji notification" do
+    user = insert(:user)
+    other_user = insert(:user)
+
+    note =
+      insert(:note,
+        user: user,
+        data: %{
+          "reactions" => [
+            ["👍", [user.ap_id], nil],
+            ["dinosaur", [user.ap_id], "http://localhost:4001/emoji/dino walking.gif"]
+          ]
+        }
+      )
+
+    activity = insert(:note_activity, note: note, user: user)
+
+    {:ok, _activity} = CommonAPI.react_with_emoji(activity.id, other_user, "dinosaur")
+
+    activity = Repo.get(Activity, activity.id)
+
+    [notification] = Notification.for_user(user)
+
+    assert notification
+
+    expected = %{
+      id: to_string(notification.id),
+      pleroma: %{is_seen: false, is_muted: false},
+      type: "pleroma:emoji_reaction",
+      emoji: ":dinosaur:",
+      account: AccountView.render("show.json", %{user: other_user, for: user}),
+      status: StatusView.render("show.json", %{activity: activity, for: user}),
+      created_at: Utils.to_masto_date(notification.inserted_at),
+      emoji_url: "http://localhost:4001/emoji/dino walking.gif"
     }
 
     test_notifications_rendering([notification], user, [expected])
diff --git a/test/pleroma/web/mastodon_api/views/status_view_test.exs b/test/pleroma/web/mastodon_api/views/status_view_test.exs
index 12a503820f..79bac3ed16 100644
--- a/test/pleroma/web/mastodon_api/views/status_view_test.exs
+++ b/test/pleroma/web/mastodon_api/views/status_view_test.exs
@@ -36,16 +36,26 @@ test "has an emoji reaction list" do
     {:ok, activity} = CommonAPI.post(user, %{status: "dae cofe??"})
 
     {:ok, _} = CommonAPI.react_with_emoji(activity.id, user, "☕")
+    {:ok, _} = CommonAPI.react_with_emoji(activity.id, user, ":dinosaur:")
     {:ok, _} = CommonAPI.react_with_emoji(activity.id, third_user, "🍵")
     {:ok, _} = CommonAPI.react_with_emoji(activity.id, other_user, "☕")
+    {:ok, _} = CommonAPI.react_with_emoji(activity.id, other_user, ":dinosaur:")
+
     activity = Repo.get(Activity, activity.id)
     status = StatusView.render("show.json", activity: activity)
 
     assert_schema(status, "Status", Pleroma.Web.ApiSpec.spec())
 
     assert status[:pleroma][:emoji_reactions] == [
-             %{name: "☕", count: 2, me: false},
-             %{name: "🍵", count: 1, me: false}
+             %{name: "☕", count: 2, me: false, url: nil, account_ids: [other_user.id, user.id]},
+             %{
+               count: 2,
+               me: false,
+               name: "dinosaur",
+               url: "http://localhost:4001/emoji/dino walking.gif",
+               account_ids: [other_user.id, user.id]
+             },
+             %{name: "🍵", count: 1, me: false, url: nil, account_ids: [third_user.id]}
            ]
 
     status = StatusView.render("show.json", activity: activity, for: user)
@@ -53,8 +63,15 @@ test "has an emoji reaction list" do
     assert_schema(status, "Status", Pleroma.Web.ApiSpec.spec())
 
     assert status[:pleroma][:emoji_reactions] == [
-             %{name: "☕", count: 2, me: true},
-             %{name: "🍵", count: 1, me: false}
+             %{name: "☕", count: 2, me: true, url: nil, account_ids: [other_user.id, user.id]},
+             %{
+               count: 2,
+               me: true,
+               name: "dinosaur",
+               url: "http://localhost:4001/emoji/dino walking.gif",
+               account_ids: [other_user.id, user.id]
+             },
+             %{name: "🍵", count: 1, me: false, url: nil, account_ids: [third_user.id]}
            ]
   end
 
@@ -67,11 +84,10 @@ test "works correctly with badly formatted emojis" do
     |> Object.update_data(%{"reactions" => %{"☕" => [user.ap_id], "x" => 1}})
 
     activity = Activity.get_by_id(activity.id)
-
     status = StatusView.render("show.json", activity: activity, for: user)
 
     assert status[:pleroma][:emoji_reactions] == [
-             %{name: "☕", count: 1, me: true}
+             %{name: "☕", count: 1, me: true, url: nil, account_ids: [user.id]}
            ]
   end
 
@@ -91,7 +107,7 @@ test "doesn't show reactions from muted and blocked users" do
     status = StatusView.render("show.json", activity: activity)
 
     assert status[:pleroma][:emoji_reactions] == [
-             %{name: "☕", count: 1, me: false}
+             %{name: "☕", count: 1, me: false, url: nil, account_ids: [other_user.id]}
            ]
 
     status = StatusView.render("show.json", activity: activity, for: user)
@@ -103,19 +119,25 @@ test "doesn't show reactions from muted and blocked users" do
     status = StatusView.render("show.json", activity: activity)
 
     assert status[:pleroma][:emoji_reactions] == [
-             %{name: "☕", count: 2, me: false}
+             %{
+               name: "☕",
+               count: 2,
+               me: false,
+               url: nil,
+               account_ids: [third_user.id, other_user.id]
+             }
            ]
 
     status = StatusView.render("show.json", activity: activity, for: user)
 
     assert status[:pleroma][:emoji_reactions] == [
-             %{name: "☕", count: 1, me: false}
+             %{name: "☕", count: 1, me: false, url: nil, account_ids: [third_user.id]}
            ]
 
     status = StatusView.render("show.json", activity: activity, for: other_user)
 
     assert status[:pleroma][:emoji_reactions] == [
-             %{name: "☕", count: 1, me: true}
+             %{name: "☕", count: 1, me: true, url: nil, account_ids: [other_user.id]}
            ]
   end
 
diff --git a/test/pleroma/web/metadata/providers/rel_me_test.exs b/test/pleroma/web/metadata/providers/rel_me_test.exs
index cce4f3607b..793669037f 100644
--- a/test/pleroma/web/metadata/providers/rel_me_test.exs
+++ b/test/pleroma/web/metadata/providers/rel_me_test.exs
@@ -11,11 +11,24 @@ test "it renders all links with rel='me' from user bio" do
     bio =
       ~s(<a href="https://some-link.com">https://some-link.com</a> <a rel="me" href="https://another-link.com">https://another-link.com</a> <link href="http://some.com"> <link rel="me" href="http://some3.com">)
 
-    user = insert(:user, %{bio: bio})
+    fields = [
+      %{
+        "name" => "profile",
+        "value" => ~S(<a rel="me" href="http://profile.com">http://profile.com</a>)
+      },
+      %{
+        "name" => "like",
+        "value" => ~S(<a href="http://cofe.io">http://cofe.io</a>)
+      },
+      %{"name" => "foo", "value" => "bar"}
+    ]
+
+    user = insert(:user, %{bio: bio, fields: fields})
 
     assert RelMe.build_tags(%{user: user}) == [
              {:link, [rel: "me", href: "http://some3.com"], []},
-             {:link, [rel: "me", href: "https://another-link.com"], []}
+             {:link, [rel: "me", href: "https://another-link.com"], []},
+             {:link, [rel: "me", href: "http://profile.com"], []}
            ]
   end
 end
diff --git a/test/pleroma/web/pleroma_api/controllers/emoji_reaction_controller_test.exs b/test/pleroma/web/pleroma_api/controllers/emoji_reaction_controller_test.exs
index 77c75b560a..d81b47a6b3 100644
--- a/test/pleroma/web/pleroma_api/controllers/emoji_reaction_controller_test.exs
+++ b/test/pleroma/web/pleroma_api/controllers/emoji_reaction_controller_test.exs
@@ -17,23 +17,113 @@ test "PUT /api/v1/pleroma/statuses/:id/reactions/:emoji", %{conn: conn} do
     user = insert(:user)
     other_user = insert(:user)
 
-    {:ok, activity} = CommonAPI.post(user, %{status: "#cofe"})
+    note = insert(:note, user: user, data: %{"reactions" => [["👍", [other_user.ap_id], nil]]})
+    activity = insert(:note_activity, note: note, user: user)
 
     result =
       conn
       |> assign(:user, other_user)
       |> assign(:token, insert(:oauth_token, user: other_user, scopes: ["write:statuses"]))
-      |> put("/api/v1/pleroma/statuses/#{activity.id}/reactions/☕")
+      |> put("/api/v1/pleroma/statuses/#{activity.id}/reactions/\u26A0")
       |> json_response_and_validate_schema(200)
 
-    # We return the status, but this our implementation detail.
     assert %{"id" => id} = result
     assert to_string(activity.id) == id
 
     assert result["pleroma"]["emoji_reactions"] == [
-             %{"name" => "☕", "count" => 1, "me" => true}
+             %{
+               "name" => "👍",
+               "count" => 1,
+               "me" => true,
+               "url" => nil,
+               "account_ids" => [other_user.id]
+             },
+             %{
+               "name" => "\u26A0\uFE0F",
+               "count" => 1,
+               "me" => true,
+               "url" => nil,
+               "account_ids" => [other_user.id]
+             }
            ]
 
+    {:ok, activity} = CommonAPI.post(user, %{status: "#cofe"})
+
+    ObanHelpers.perform_all()
+
+    # Reacting with a custom emoji
+    result =
+      conn
+      |> assign(:user, other_user)
+      |> assign(:token, insert(:oauth_token, user: other_user, scopes: ["write:statuses"]))
+      |> put("/api/v1/pleroma/statuses/#{activity.id}/reactions/:dinosaur:")
+      |> json_response_and_validate_schema(200)
+
+    assert %{"id" => id} = result
+    assert to_string(activity.id) == id
+
+    assert result["pleroma"]["emoji_reactions"] == [
+             %{
+               "name" => "dinosaur",
+               "count" => 1,
+               "me" => true,
+               "url" => "http://localhost:4001/emoji/dino walking.gif",
+               "account_ids" => [other_user.id]
+             }
+           ]
+
+    # Reacting with a remote emoji
+    note =
+      insert(:note,
+        user: user,
+        data: %{
+          "reactions" => [
+            ["👍", [other_user.ap_id], nil],
+            ["wow", [other_user.ap_id], "https://remote/emoji/wow"]
+          ]
+        }
+      )
+
+    activity = insert(:note_activity, note: note, user: user)
+
+    result =
+      conn
+      |> assign(:user, user)
+      |> assign(:token, insert(:oauth_token, user: user, scopes: ["write:statuses"]))
+      |> put("/api/v1/pleroma/statuses/#{activity.id}/reactions/:wow@remote:")
+      |> json_response(200)
+
+    assert result["pleroma"]["emoji_reactions"] == [
+             %{
+               "account_ids" => [other_user.id],
+               "count" => 1,
+               "me" => false,
+               "name" => "👍",
+               "url" => nil
+             },
+             %{
+               "name" => "wow@remote",
+               "count" => 2,
+               "me" => true,
+               "url" => "https://remote/emoji/wow",
+               "account_ids" => [user.id, other_user.id]
+             }
+           ]
+
+    # Reacting with a remote custom emoji that hasn't been reacted with yet
+    note =
+      insert(:note,
+        user: user
+      )
+
+    activity = insert(:note_activity, note: note, user: user)
+
+    assert conn
+           |> assign(:user, user)
+           |> assign(:token, insert(:oauth_token, user: user, scopes: ["write:statuses"]))
+           |> put("/api/v1/pleroma/statuses/#{activity.id}/reactions/:wow@remote:")
+           |> json_response(400)
+
     # Reacting with a non-emoji
     assert conn
            |> assign(:user, other_user)
@@ -46,8 +136,21 @@ test "DELETE /api/v1/pleroma/statuses/:id/reactions/:emoji", %{conn: conn} do
     user = insert(:user)
     other_user = insert(:user)
 
-    {:ok, activity} = CommonAPI.post(user, %{status: "#cofe"})
+    note =
+      insert(:note,
+        user: user,
+        data: %{"reactions" => [["wow", [user.ap_id], "https://remote/emoji/wow"]]}
+      )
+
+    activity = insert(:note_activity, note: note, user: user)
+
+    ObanHelpers.perform_all()
+
     {:ok, _reaction_activity} = CommonAPI.react_with_emoji(activity.id, other_user, "☕")
+    {:ok, _reaction_activity} = CommonAPI.react_with_emoji(activity.id, other_user, ":dinosaur:")
+
+    {:ok, _reaction_activity} =
+      CommonAPI.react_with_emoji(activity.id, other_user, ":wow@remote:")
 
     ObanHelpers.perform_all()
 
@@ -60,11 +163,47 @@ test "DELETE /api/v1/pleroma/statuses/:id/reactions/:emoji", %{conn: conn} do
     assert %{"id" => id} = json_response_and_validate_schema(result, 200)
     assert to_string(activity.id) == id
 
+    # Remove custom emoji
+
+    result =
+      conn
+      |> assign(:user, other_user)
+      |> assign(:token, insert(:oauth_token, user: other_user, scopes: ["write:statuses"]))
+      |> delete("/api/v1/pleroma/statuses/#{activity.id}/reactions/:dinosaur:")
+
+    assert %{"id" => id} = json_response_and_validate_schema(result, 200)
+    assert to_string(activity.id) == id
+
     ObanHelpers.perform_all()
 
     object = Object.get_by_ap_id(activity.data["object"])
 
-    assert object.data["reaction_count"] == 0
+    assert object.data["reaction_count"] == 2
+
+    # Remove custom remote emoji
+    result =
+      conn
+      |> assign(:user, other_user)
+      |> assign(:token, insert(:oauth_token, user: other_user, scopes: ["write:statuses"]))
+      |> delete("/api/v1/pleroma/statuses/#{activity.id}/reactions/:wow@remote:")
+      |> json_response(200)
+
+    assert result["pleroma"]["emoji_reactions"] == [
+             %{
+               "name" => "wow@remote",
+               "count" => 1,
+               "me" => false,
+               "url" => "https://remote/emoji/wow",
+               "account_ids" => [user.id]
+             }
+           ]
+
+    # Remove custom remote emoji that hasn't been reacted with yet
+    assert conn
+           |> assign(:user, other_user)
+           |> assign(:token, insert(:oauth_token, user: other_user, scopes: ["write:statuses"]))
+           |> delete("/api/v1/pleroma/statuses/#{activity.id}/reactions/:zoop@remote:")
+           |> json_response(400)
   end
 
   test "GET /api/v1/pleroma/statuses/:id/reactions", %{conn: conn} do
@@ -181,7 +320,15 @@ test "GET /api/v1/pleroma/statuses/:id/reactions/:emoji", %{conn: conn} do
     {:ok, _} = CommonAPI.react_with_emoji(activity.id, other_user, "🎅")
     {:ok, _} = CommonAPI.react_with_emoji(activity.id, other_user, "☕")
 
-    assert [%{"name" => "🎅", "count" => 1, "accounts" => [represented_user], "me" => false}] =
+    assert [
+             %{
+               "name" => "🎅",
+               "count" => 1,
+               "accounts" => [represented_user],
+               "me" => false,
+               "url" => nil
+             }
+           ] =
              conn
              |> get("/api/v1/pleroma/statuses/#{activity.id}/reactions/🎅")
              |> json_response_and_validate_schema(200)