nixpkgs/doc/builders/packages/ibus.xml

<section xmlns="http://docbook.org/ns/docbook"
         xmlns:xlink="http://www.w3.org/1999/xlink"
         xml:id="sec-ibus-typing-booster">
 <title>ibus-engines.typing-booster</title>

 <para>
  This package is an ibus-based completion method to speed up typing.
 </para>

 <section xml:id="sec-ibus-typing-booster-activate">
  <title>Activating the engine</title>

  <para>
   IBus needs to be configured accordingly to activate <literal>typing-booster</literal>. The configuration depends on the desktop manager in use. For detailed instructions, please refer to the <link xlink:href="https://mike-fabian.github.io/ibus-typing-booster/documentation.html">upstream docs</link>.
  </para>

  <para>
   On NixOS you need to explicitly enable <literal>ibus</literal> with given engines before customizing your desktop to use <literal>typing-booster</literal>. This can be achieved using the <literal>ibus</literal> module:
<programlisting>{ pkgs, ... }: {
  i18n.inputMethod = {
    enabled = "ibus";
    ibus.engines = with pkgs.ibus-engines; [ typing-booster ];
  };
}</programlisting>
  </para>
 </section>

 <section xml:id="sec-ibus-typing-booster-customize-hunspell">
  <title>Using custom hunspell dictionaries</title>

  <para>
   The IBus engine is based on <literal>hunspell</literal> to support completion in many languages. By default the dictionaries <literal>de-de</literal>, <literal>en-us</literal>, <literal>fr-moderne</literal> <literal>es-es</literal>, <literal>it-it</literal>, <literal>sv-se</literal> and <literal>sv-fi</literal> are in use. To add another dictionary, the package can be overridden like this:
<programlisting>ibus-engines.typing-booster.override {
  langs = [ "de-at" "en-gb" ];
}</programlisting>
  </para>

  <para>
   <emphasis>Note: each language passed to <literal>langs</literal> must be an attribute name in <literal>pkgs.hunspellDicts</literal>.</emphasis>
  </para>
 </section>

 <section xml:id="sec-ibus-typing-booster-emoji-picker">
  <title>Built-in emoji picker</title>

  <para>
   The <literal>ibus-engines.typing-booster</literal> package contains a program named <literal>emoji-picker</literal>. To display all emojis correctly, a special font such as <literal>noto-fonts-emoji</literal> is needed:
  </para>

  <para>
   On NixOS it can be installed using the following expression:
<programlisting>{ pkgs, ... }: {
  fonts.fonts = with pkgs; [ noto-fonts-emoji ];
}</programlisting>
  </para>
 </section>
</section>