How do I install Gecko for Wine?

I’m playing with Lutris on 23.11 and for a game it complains it needs Gecko for Wine.

Wine could not find a Gecko package which is needed for
applications embedding HTML to work correctly. Wine can
automatically download and install it for you.

Note: it is recommended to use your distribution's packages instead.
See https://wiki.winehq.org/Gecko for details.

I can’t really find any packages for it, either, but is it somehow included in some other package or is it simply not packaged?

I tried to let Lutris install it on its own, but that failboat’ed

wine client error:12c: write: Bad file descriptor
Monitored process exited.
Initial process has exited (return code: 1280)
Exit with return code 1280
2024-03-03 08:49:36,594: Command exited with code 1280
2024-03-03 08:49:36,594: Command exited with code 1280
Traceback (most recent call last):
  File "/nix/store/j3ggx83i4ylsvlii30wzcdzxb0wjya8h-lutris-unwrapped-0.5.14/lib/python3.11/site-packages/lutris/exceptions.py", line 67, in wrapper
    return function(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/nix/store/j3ggx83i4ylsvlii30wzcdzxb0wjya8h-lutris-unwrapped-0.5.14/lib/python3.11/site-packages/lutris/installer/commands.py", line 450, in _monitor_task
    raise ScriptingError(_("Command exited with code %s") % command.return_code)
lutris.installer.errors.ScriptingError: Command exited with code 1280