I need to repeatedly use `Extensions -> Render -> Mathematics -> LaTeX (pdflatex)` in Inkscape. It is quite painful to browse through so many menu items to open it (I need to use this function ~30 times to create certain diagrams). I want to assign a shortcut to it.

I found this question in Ask Ubuntu, which suggests saving the following in ~/.config/inkscape/keys/default.xml.

<?xml version="1.0"?>
<keys name="My Customization">
    <bind key="k" modifiers="Ctrl,Alt"
          action="org.inkscape.effect.eqtexsvg" display="true"/>
</keys>

However, it does not work in Inkscape 1.1.1,

When I run it form terminal, I get the error message

$ inkscape
Unable to find: org.inkscape.effect.eqtexsvg
Shortcut::read: invalid verb: org.inkscape.effect.eqtexsvg

That extension might not be updated for new versions of Inkscape.

Maybe this one will be helpful, or point you in the direction. https://github.com/seebk/LaTeXText

Just to clarify, this extension is present in the default installation. The extension you had suggested is something else.

Maybe you have seen this: https://github.com/julienvitard/eqtexsvg.  Last updated in 2015.

It seems that the extension eqtexsvg is not even installed in my computer (I could not find it anywhere with `locate`). An extension called pdflatex is installed in usr/share/inkscape/extensions. Here are the contents of pdflatex.inx.

<?xml version="1.0" encoding="UTF-8"?>
<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
    <name>LaTeX (pdflatex)</name>
    <id>org.inkscape.generate.pdf_latex</id>
    <dependency type="executable" location="path">pdflatex</dependency>
    <param name="formule" type="string" gui-text="LaTeX input:">\(\displaystyle\frac{\pi^2}{6}=\lim_{n \to \infty}\sum_{k=1}^n \frac{1}{k^2}\)</param>
        <param name="packages" type="string" gui-text="Additional packages (comma-separated):"></param>
    <effect>
    <object-type>all</object-type>
      <effects-menu>
       <submenu name="Render">
          <submenu name="Mathematics" />
        </submenu>
      </effects-menu>
    </effect>
    <script>
        <command location="inx" interpreter="python">pdflatex.py</command>
    </script>
</inkscape-extension>

This must be the extension I had been using, as I can find it under `Render -> Mathematics`.

How do I assign a shortcut to that?

The solution is to add the following to ~/.config/inkscape/keys/default.xml .

<?xml version="1.0"?>
<keys name="My Customization">
    <bind key="k" modifiers="Ctrl,Alt"
          action="org.inkscape.generate.pdf_latex" display="true"/>
</keys>

I got the ID org.inkscape.generate.pdf_latex from usr/share/inkscape/extensions/pdflatex.inx

Then, the extension works with ctrl + alt + k.

For some reason, this does not work in the development version of inkscape (1.2). I installed from source. I have the same configuration file, but nothing happens when I press the same key combination. Did the procedure of assigning a shortcut change?

Development versions are recommended only for testing, and might not be complete.